GeotchaA geography quiz on a real globe

25 longest rivers in the world

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. 1Nile6,650 km
  2. 2Amazon6,400 km
  3. 3Yangtze6,300 km
  4. 4Yellow River5,464 km
  5. 5Paraná4,880 km
  6. 6Congo4,700 km
  7. 7Mekong4,350 km
  8. 8Lena4,294 km
  9. 9Irtysh4,248 km
  10. 10Niger4,180 km
  11. 11Mississippi3,766 km
  12. 12Missouri3,726 km
  13. 13Ob3,650 km
  14. 14Volga3,530 km
  15. 15Yenisei3,487 km
  16. 16Yukon3,190 km
  17. 17Indus3,180 km
  18. 18Juruá3,100 km
  19. 19Rio Grande3,051 km
  20. 20Nizhnyaya Tunguska2,989 km
  21. 21Purus2,960 km
  22. 22Brahmaputra2,900 km
  23. 23Danube2,850 km
  24. 24Amur2,824 km
  25. 25Japurá2,820 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.

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