How big are
things, really?

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

How Big

Source coverage: Height of the tower alone; other monuments at the site excluded.

• Source 1 · whc.unesco.org →
• Source 2 · delhitourism.gov.in →
• Source 3 · incredibleindia.gov.in →

How Big

Source coverage: Side of the base plan, not the temple's height or a perspective diagonal.

• Source 1 · bimasbuddha.kemenag.go.id →
• Source 2 · whc.unesco.org →
• Source 3 · repositori.kemendikdasmen.go.id →
• Source 4 · bob.kemenpar.go.id →

How Big · interpreted illustration

Source coverage: Interpreted architectural profile; only the documented length of 183 m is calibrated, not a certified architectural reconstruction.

• Source 1 · permasteelisagroup.com →

How Big

Source coverage: Architectural height to the tips, not the width of the pair or the height of the skybridge.

• Source 1 · petronastwintowers.com.my →
• Source 2 · petronastwintowers.com.my →
• Source 3 · pcparch.com →
• Source 4 · skyscrapercenter.com →

How Big

Source coverage: Interpreted general profile; secondary details have not been individually surveyed.

• Source 1 · jb-honshi.co.jp →

Natural Earth (public domain)

Source coverage: Generalised main route, with coastlines and lakes from Natural Earth. Some current approaches, locks and parallel channels are not shown in detail. The map retains its geographical orientation; only the independent bar compares the documented length.

• Source 1 · raw.githubusercontent.com →
• Source 2 · raw.githubusercontent.com →
• Source 3 · raw.githubusercontent.com →
• Source 4 · naturalearthdata.com →
• Source 5 · howbig.space →

Natural Earth (public domain)

Source coverage: Generalised main route, with coastlines and lakes from Natural Earth. Some current approaches, locks and parallel channels are not shown in detail. The map retains its geographical orientation; only the independent bar compares the documented length.

• Source 1 · raw.githubusercontent.com →
• Source 2 · raw.githubusercontent.com →
• Source 3 · raw.githubusercontent.com →
• Source 4 · naturalearthdata.com →
• Source 5 · howbig.space →

How Big

Source coverage: Representative Ming section, not a map of the network; only the ruler carries the cumulative length.

• Source 1 · whc.unesco.org →
• Source 2 · english.www.gov.cn →

How Big — generated illustration; NASA/ESA documentation.

Source coverage: Visual interpretation; colours and texture do not constitute an observation. Only the designated extent follows the catalogue's reference value.

• Source 1 · cesar.esa.int →
• Source 2 · science.nasa.gov →
• Source 3 · science.nasa.gov →

How Big — generated illustration; NASA/ESA documentation.

Source coverage: Visual interpretation; colours and texture do not constitute an observation. Only the designated extent follows the catalogue's reference value.

• Source 1 · science.nasa.gov →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · newscenter.lbl.gov →
• Source 2 · e3s-center.berkeley.edu →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · news2.rice.edu →
• Source 2 · pubs.acs.org →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · news.cornell.edu →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · pubmed.ncbi.nlm.nih.gov →
• Source 2 · nature.com →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · guinnessworldrecords.com →
• Source 2 · ibm.com →

• Source 1 · rothemundlab.caltech.edu →

• Source 1 · news.cornell.edu →

How Big

Source coverage: Interpreted illustration; only the designated dimension is calibrated.

• Source 1 · news.cornell.edu →
• Source 2 · cohengroup.ccmr.cornell.edu →

How Big — generated illustration; NASA/ESA documentary references.

Source coverage: Interpreted reconstruction; brightness, colours and textures are not an observation. Only the designated dimension uses the catalogue's representative value.

• Source 1 · science.nasa.gov →

How Big — generated illustration; NASA/ESA documentary references.

Source coverage: Interpreted reconstruction; brightness, colours and textures are not an observation. Only the designated dimension uses the catalogue's representative value.

• Source 1 · science.nasa.gov →

How Big — generated illustration; NASA/ESA documentary references.

Source coverage: Interpreted reconstruction; brightness, colours and textures are not an observation. Only the designated dimension uses the catalogue's representative value.

• Source 1 · science.nasa.gov →

IGN/OFB · BD TOPAGE 2024 (Open Licence 2.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. BD TOPAGE2024 © IGN/OFB, SANDRE; generalized department overview prepared by Deepak420-GrandMaster/France-River-Flow-Map. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · etalab.gouv.fr →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

© Geoscience Australia (CC BY 4.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. © Commonwealth of Australia (Geoscience Australia), Surface Hydrology Lines (Regional); named-stream OSM extraction by FrakGart/ga_streams. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · creativecommons.org →
• Source 4 · pid.geoscience.gov.au →
• Source 5 · raw.githubusercontent.com →
• Source 6 · github.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · github.com →
• Source 9 · raw.githubusercontent.com →
• Source 10 · github.com →
• Source 11 · raw.githubusercontent.com →
• Source 12 · github.com →
• Source 13 · raw.githubusercontent.com →
• Source 14 · github.com →
• Source 15 · raw.githubusercontent.com →
• Source 16 · github.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth / © OpenStreetMap contributors (ODbL 1.0)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the width of the map. No individual hydrological certification of the entire course. Geofreak; Natural Earth (public domain) / © OpenStreetMap contributors (ODbL 1.0). Upstream per-file origin is not individually certified. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · openstreetmap.org →
• Source 4 · opendatacommons.org →
• Source 5 · naturalearthdata.com →
• Source 6 · raw.githubusercontent.com →
• Source 7 · raw.githubusercontent.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth / © OpenStreetMap contributors (ODbL 1.0)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the width of the map. No individual hydrological certification of the entire course. Geofreak; Natural Earth (public domain) / © OpenStreetMap contributors (ODbL 1.0). Upstream per-file origin is not individually certified. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · openstreetmap.org →
• Source 4 · opendatacommons.org →
• Source 5 · naturalearthdata.com →
• Source 6 · raw.githubusercontent.com →
• Source 7 · raw.githubusercontent.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

GSHHG/WDBII · Basemap (LGPL3+)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. Historical WDBII route: its position is sometimes offset from modern observations; the source line length is independent of the documented reference of 1 300 km. GSHHG 2.3.6 / WDBII river linework, prepared with GMT 5.x and distributed by Matplotlib Basemap. Original source coordinates retained. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · files.pythonhosted.org →
• Source 3 · gnu.org →
• Source 4 · gnu.org →
• Source 5 · howbig.space →
• Source 6 · howbig.space →
• Source 7 · howbig.space →
• Source 8 · fao.org →
• Source 9 · dahiti.dgfi.tum.de →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth / © OpenStreetMap contributors (ODbL 1.0)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the width of the map. No individual hydrological certification of the entire course. Geofreak; Natural Earth (public domain) / © OpenStreetMap contributors (ODbL 1.0). Upstream per-file origin is not individually certified. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · openstreetmap.org →
• Source 4 · opendatacommons.org →
• Source 5 · naturalearthdata.com →
• Source 6 · raw.githubusercontent.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · raw.githubusercontent.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →
• Source 4 · fao.org →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

© Geoscience Australia (CC BY 4.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. © Commonwealth of Australia (Geoscience Australia), Surface Hydrology Lines (Regional); named-stream OSM extraction by FrakGart/ga_streams. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · creativecommons.org →
• Source 4 · pid.geoscience.gov.au →
• Source 5 · raw.githubusercontent.com →
• Source 6 · github.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · github.com →
• Source 9 · raw.githubusercontent.com →
• Source 10 · github.com →
• Source 11 · raw.githubusercontent.com →
• Source 12 · github.com →
• Source 13 · raw.githubusercontent.com →
• Source 14 · github.com →
• Source 15 · raw.githubusercontent.com →
• Source 16 · github.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

© Geoscience Australia (CC BY 4.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. © Commonwealth of Australia (Geoscience Australia), Surface Hydrology Lines (Regional); named-stream OSM extraction by FrakGart/ga_streams. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · creativecommons.org →
• Source 4 · pid.geoscience.gov.au →
• Source 5 · raw.githubusercontent.com →
• Source 6 · github.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · github.com →
• Source 9 · raw.githubusercontent.com →
• Source 10 · github.com →
• Source 11 · raw.githubusercontent.com →
• Source 12 · github.com →
• Source 13 · raw.githubusercontent.com →
• Source 14 · github.com →
• Source 15 · raw.githubusercontent.com →
• Source 16 · github.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

© Geoscience Australia (CC BY 4.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. © Commonwealth of Australia (Geoscience Australia), Surface Hydrology Lines (Regional); named-stream OSM extraction by FrakGart/ga_streams. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · creativecommons.org →
• Source 4 · pid.geoscience.gov.au →
• Source 5 · raw.githubusercontent.com →
• Source 6 · github.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · github.com →
• Source 9 · raw.githubusercontent.com →
• Source 10 · github.com →
• Source 11 · raw.githubusercontent.com →
• Source 12 · github.com →
• Source 13 · raw.githubusercontent.com →
• Source 14 · github.com →
• Source 15 · raw.githubusercontent.com →
• Source 16 · github.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

© Geoscience Australia (CC BY 4.0; modified)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the map width. No individual hydrological certification of the entire course. © Commonwealth of Australia (Geoscience Australia), Surface Hydrology Lines (Regional); named-stream OSM extraction by FrakGart/ga_streams. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · creativecommons.org →
• Source 4 · pid.geoscience.gov.au →
• Source 5 · raw.githubusercontent.com →
• Source 6 · github.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · github.com →
• Source 9 · raw.githubusercontent.com →
• Source 10 · github.com →
• Source 11 · raw.githubusercontent.com →
• Source 12 · github.com →
• Source 13 · raw.githubusercontent.com →
• Source 14 · github.com →
• Source 15 · raw.githubusercontent.com →
• Source 16 · github.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth / © OpenStreetMap contributors (ODbL 1.0)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the width of the map. No individual hydrological certification of the entire course. Geofreak; Natural Earth (public domain) / © OpenStreetMap contributors (ODbL 1.0). Upstream per-file origin is not individually certified. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · openstreetmap.org →
• Source 4 · opendatacommons.org →
• Source 5 · naturalearthdata.com →
• Source 6 · raw.githubusercontent.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · raw.githubusercontent.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth / © OpenStreetMap contributors (ODbL 1.0)

Source coverage: Generalised map view of the available published segments; it may be partial and include several branches. The documented length is compared using the independent bar, not the width of the map. No individual hydrological certification of the entire course. Geofreak; Natural Earth (public domain) / © OpenStreetMap contributors (ODbL 1.0). Upstream per-file origin is not individually certified. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · github.com →
• Source 3 · openstreetmap.org →
• Source 4 · opendatacommons.org →
• Source 5 · naturalearthdata.com →
• Source 6 · raw.githubusercontent.com →
• Source 7 · raw.githubusercontent.com →
• Source 8 · raw.githubusercontent.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →

Natural Earth (public domain)

Source coverage: Generalized map of the available published segments; it may be partial and include several branches. The documentary length is compared with the separate ruler, not with the width of the map. The complete course has not received individual hydrological certification. Natural Earth, public domain. Modified visualization: projection, generalized source trace, interpreted water/bank texture; 2026-11-04.

• Source 1 · howbig.space →
• Source 2 · raw.githubusercontent.com →
• Source 3 · naturalearthdata.com →