GeotchaA geography quiz on a real globe

25 longest rivers of the Gulf of Mexico basin

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. 1Mississippi3,766 km
2. 2Missouri3,726 km
3. 3Rio Grande3,051 km
4. 4Arkansas2,364 km
5. 5Ohio1,579 km
6. 6Pecos1,560 km
7. 7Canadian1,458 km
8. 8Colorado (Texas)1,387 km
9. 9Brazos1,352 km
10. 10Milk River1,173 km
11. 11White River1,162 km
12. 12North Platte River1,152 km
13. 13James (Dakotas)1,143 km
14. 14Trinity1,140 km
15. 15Cimarron1,123 km
16. 16Yellowstone1,114 km
17. 17Cumberland1,107 km
18. 18Tennessee1,049 km
19. 19Wabash960 km
20. 20White River (Missouri River tributary)933 km
21. 21Smoky Hill River925 km
22. 22Niobrara915 km
23. 23Rio Conchos910 km
24. 24Little Missouri River901 km
25. 25Des Moines845 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. Rivers in Antarctica are left out unless the quiz includes Antarctica. The Gulf of Mexico basin: every river here whose waters reach the Gulf of Mexico or a sea, gulf or bay inside it, as the IHO's sea areas nest (the North Sea lies in the Atlantic, the Adriatic in the Mediterranean), directly or through other rivers and lakes, following where Wikidata says each river flows (P403) downstream. Rivers of inland basins (the Caspian Sea, Lake Balkhash) reach no ocean.

On the map

More in Gulf of Mexico

• 25 largest islands in the Gulf of Mexico
• 13 longest rivers flowing into the Gulf of Mexico

Similar quizzes

• 25 longest rivers flowing into the Atlantic
• 50 longest rivers flowing into the Atlantic
• 50 longest rivers of the Atlantic basin
• 25 longest rivers flowing into the Pacific
• 50 longest rivers flowing into the Pacific
• 50 longest rivers of the Pacific basin
• 25 longest rivers flowing into the Arctic Ocean
• 50 longest rivers flowing into the Arctic Ocean
• 50 longest rivers of the Arctic Ocean basin
• 25 longest rivers flowing into the Indian Ocean
• Longest river systems