Ob River Map
The Ob River is a 3,650 km (2,270 mi) river in Russia. This map shows its course from Katun to the Kara Sea on shaded relief, with its river network, lakes, borders and major cities.
How to read this map
The Ob River is about 3,650 km (2,270 mi) long and drains a basin of about 2,990,000 km² (1,150,000 sq mi). Its average discharge is about 12,500 m³/s (441,000 cu ft/s). It rises at Katun and flows into the Kara Sea. Tributaries include Irtysh, Vasyugan, Ket, Tom, Tym, Vakh, Chulym and Poluy.
The highlighted blue line is the course of the Ob River as mapped by Natural Earth. Towns and cities on the map include Novosibirsk, Yekaterinburg, Omsk, Chelyabinsk, Perm, Barnaul, Novokuznetsk and Tomsk. Labeled countries: Kazakhstan.
Greens show lower elevations; tan and brown show higher land, with pale tones toward the highest terrain. Shadows emphasize the slopes, and vertical relief is exaggerated so landforms are easier to read. Dashed lines show country borders.
The relief uses Terrain Tiles (SRTM, GMTED2010 and ETOPO1 elevation data). Rivers, lakes, borders and the course of the Ob River come from Natural Earth, and the figures on this page from Wikidata. Natural Earth draws features at a small scale, so the line is a guide to where the Ob River is, not a surveyed boundary.
Blank physical map
The blank version keeps the mapped features and removes the place labels. Download it for a geography worksheet or practice identifying the features.
Ob River facts
| Fact | Value |
|---|---|
| Length | 3,650 km (2,270 mi) |
| Drainage basin | 2,990,000 km² (1,150,000 sq mi) |
| Average discharge | 12,500 m³/s (441,000 cu ft/s) |
| Source | Katun |
| Mouth | the Kara Sea |
| Countries | Russia |
| Tributaries | Irtysh, Vasyugan, Ket, Tom, Tym, Vakh, Chulym, Poluy, Severnaya Sosva and Anuy |
Data sources and license
- Natural Earth (public-domain geography): Public domain.
- Terrain Tiles / Mapzen (SRTM, GMTED2010, ETOPO1): Open elevation data; source attribution retained.
- Wikidata (lengths, areas, countries and other facts): CC0 1.0.
Map design and rendered images: Atlas of Maps, CC BY 4.0. Source databases retain their own licenses; the map license does not replace them.
Maps of the countries: Russia. Compare with the world rivers map.
Frequently asked questions
How long is the Ob River?
The Ob River is about 3,650 km (2,270 mi) long, with a drainage basin of about 2,990,000 km² (1,150,000 sq mi).
Where does the Ob River start and end?
The Ob River rises at Katun and flows into the Kara Sea.
Can I download a blank map of the Ob River?
Yes. The blank version keeps the relief, rivers and borders and the highlighted river but removes the place names. Both versions are free to download as PNG and as an A4 PDF.
Use this map
You can download, print and share this map for free, in class, in school projects, in presentations and on websites, as long as you credit the source: Ob River Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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