U.S. River Basins

Interactive Map: Contiguous U.S. Major River Basins

(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 River 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