St. Clair River Map
The St. Clair River is a 65 km (40 mi) river through 2 countries. This map shows its course from Lake Huron to Lake Saint Clair on shaded relief, with its river network, lakes, borders and major cities.
How to read this map
The St. Clair River is about 65 km (40 mi) long and drains a basin of about 3,780 km² (1,460 sq mi). Its average discharge is about 5,200 m³/s (184,000 cu ft/s). It rises at Lake Huron and flows into Lake Saint Clair. It flows through or along Canada and the United States. Tributaries include Belle River, Black River, Pine River, Talfourd Creek, Baby Creek, Bowens Creek and Clay Creek.
The highlighted blue line is the course of the St. Clair River as mapped by Natural Earth. Towns and cities on the map include Detroit, Toledo, London, Flint, Ann Arbor, Sarnia, Saginaw and Bay 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 St. Clair 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 St. Clair 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.
St. Clair River facts
| Fact | Value |
|---|---|
| Length | 65 km (40 mi) |
| Drainage basin | 3,780 km² (1,460 sq mi) |
| Average discharge | 5,200 m³/s (184,000 cu ft/s) |
| Source | Lake Huron |
| Mouth | Lake Saint Clair |
| Countries | Canada and the United States |
| US states | Michigan |
| Tributaries | Belle River, Black River, Pine River, Talfourd Creek, Baby Creek, Bowens Creek and Clay 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: Canada, United States. Compare with the world rivers map.
Frequently asked questions
How long is the St. Clair River?
The St. Clair River is about 65 km (40 mi) long, with a drainage basin of about 3,780 km² (1,460 sq mi).
Where does the St. Clair River start and end?
The St. Clair River rises at Lake Huron and flows into Lake Saint Clair.
Which countries does the St. Clair River flow through?
The St. Clair River flows through or along Canada and the United States.
Can I download a blank map of the St. Clair 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: St. Clair River Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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