GeotchaA geography quiz on a real globe

25 longest rivers in the US West Coast

25 rivers, each one drawn on a satellite globe. Name it when it lights up, find it when you are given its name, or type every one you can remember in Name all.

Free to play, with no account needed. What you miss comes back for review until it sticks.

The rivers

  1. 1Colorado2,334 km
  2. 2Columbia2,000 km
  3. 3Snake River1,735 km
  4. 4Salmon River684 km
  5. 5Sacramento644 km
  6. 6San Joaquin564 km
  7. 7Owyhee557 km
  8. 8John Day452 km
  9. 9Klamath423 km
  10. 10Deschutes406 km
  11. 11Yakima350 km
  12. 12Pit333 km
  13. 13Eel322 km
  14. 14Rogue322 km
  15. 15Malheur306 km
  16. 16Willamette301 km
  17. 17Amargosa298 km
  18. 18Owens295 km
  19. 19Grande Ronde293 km
  20. 20Kettle282 km
  21. 21Feather River270 km
  22. 22Palouse269 km
  23. 23Trinity (California)266 km
  24. 24Kern264 km
  25. 25Crab Creek262 km

Length in km as Wikidata records it (P2043, the best-ranked figure). Each named river counts on its own: the river that carries the name, from its source to its mouth. Headstreams and tributaries with names of their own are rivers of their own, so the Missouri and the Mississippi are two rivers here, as are the Irtysh and the Ob (the Longest River Systems set measures such chains as one system, from the most distant source). A named section of a river is that river: the Solimões, as the Amazon’s upper course is called in Brazil, is the Amazon. Where the recorded length runs from a differently named headwater (the Congo’s from the Lualaba’s source), the course is drawn on up that headwater. Rivers under 200 km are in only when they are well known (30 or more Wikipedia editions), and a river whose mapped course covers under half its recorded length is left out. The US West Coast: California, Oregon and Washington. Places are by geography: what lies in a dependency counts for its own region (Puerto Rico’s islands are the Caribbean’s, Réunion’s Africa’s), and Hawaii is in Polynesia.

On the map

Map of 25 longest rivers in the US West Coast, 25 rivers: each one marked on the globe

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