U.S. River Basins

U.S. River Basins

The 18 major U.S. river basins in the contiguous U.S., as designated by the U.S. Water Resources Council.

1. Pacific Northwest Basin
2. California River Basin
3. Great Basin
4. Lower Colorado River Basin
5. Upper Colorado River Basin
6. Rio Grande River Basin
7. Texas Gulf Coast Basin
8. Arkansas-White-Red Basin
9. Lower Mississippi River Basin
10. Missouri River Basin
11. Souris-Red-Rainy Basin
12. Upper Mississippi Basin
13. Great Lakes Basin
14. Tennessee River Basin
15. Ohio River Basin
16. South Atlantic-Gulf Basin
17. Mid-Atlantic Basin
18. New England Basin