Klamath River Map
The Klamath River is a 423 km (263 mi) river in the United States. This map shows its course from Upper Klamath Lake to the Pacific Ocean on shaded relief, with its river network, lakes, borders and major cities.
How to read this map
The Klamath River is about 423 km (263 mi) long and drains a basin of about 40,800 km² (15,800 sq mi). Its average discharge is about 482 m³/s (17,000 cu ft/s). It rises at Upper Klamath Lake and flows into the Pacific Ocean. It flows through or along California and Oregon. Tributaries include Trinity River, Scott River, Shasta River, Boise Creek, Salmon River and Blue Creek.
The highlighted blue line is the course of the Klamath River as mapped by Natural Earth. Towns and cities on the map include Medford, Grants Pass, Klamath Falls, Eureka, Arcata and Crescent City.
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, and fine dashed lines show state or province borders.
The relief uses Terrain Tiles (SRTM, GMTED2010 and ETOPO1 elevation data). Rivers, lakes, borders and the course of the Klamath 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 Klamath 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.
Klamath River facts
| Fact | Value |
|---|---|
| Length | 423 km (263 mi) |
| Drainage basin | 40,800 km² (15,800 sq mi) |
| Average discharge | 482 m³/s (17,000 cu ft/s) |
| Source | Upper Klamath Lake |
| Mouth | the Pacific Ocean |
| Countries | the United States |
| US states | California and Oregon |
| Tributaries | Trinity River, Scott River, Shasta River, Boise Creek, Salmon River and Blue Creek |
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: United States. Compare with the world rivers map.
Frequently asked questions
How long is the Klamath River?
The Klamath River is about 423 km (263 mi) long, with a drainage basin of about 40,800 km² (15,800 sq mi).
Where does the Klamath River start and end?
The Klamath River rises at Upper Klamath Lake and flows into the Pacific Ocean.
Which states does the Klamath River flow through?
The Klamath River flows through or along California and Oregon.
Can I download a blank map of the Klamath 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: Klamath River Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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