GeotchaA geography quiz on a real globe

16 longest rivers in California

16 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. 2Sacramento644 km
  3. 3San Joaquin564 km
  4. 4Klamath423 km
  5. 5Pit333 km
  6. 6Eel322 km
  7. 7Amargosa298 km
  8. 8Owens295 km
  9. 9Feather River270 km
  10. 10Trinity (California)266 km
  11. 11Kern264 km
  12. 12Salinas240 km
  13. 13Tuolumne239 km
  14. 14Merced233 km
  15. 15Kings201 km
  16. 16Los Angeles77 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. An item counts for every first-level unit (state, province, county) it touches: a lake or island by its outline, a river by its course, within about 1.5 km; a summit, a cape or anything without a shape by its point.

On the map

Map of 16 longest rivers in California, 16 rivers: each one marked on the globe

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