GeotchaA geography quiz on a real globe

25 longest rivers in the American Southwest

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. 1Rio Grande3,051 km
2. 2Colorado2,334 km
3. 3Pecos1,560 km
4. 4Canadian1,458 km
5. 5Green River1,175 km
6. 6Cimarron1,123 km
7. 7Gila1,044 km
8. 8Bear River790 km
9. 9San Juan616 km
10. 10Sevier616 km
11. 11Owyhee557 km
12. 12Humboldt531 km
13. 13Little Colorado River507 km
14. 14Dolores400 km
15. 15Salt River322 km
16. 16White River (Green River tributary)314 km
17. 17Amargosa298 km
18. 18Santa Cruz (Arizona)296 km
19. 19Verde274 km
20. 20Puerco269 km
21. 21Virgin261 km
22. 22Bruneau246 km
23. 23San Pedro230 km
24. 24Carson211 km
25. 25South Fork Owyhee River205 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 American Southwest: Arizona, New Mexico, Nevada and Utah. 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

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