GeotchaA geography quiz on a real globe

25 longest rivers in Alaska

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. 1Yukon3,190 km
  2. 2Kuskokwim1,130 km
  3. 3Tanana940 km
  4. 4Porcupine916 km
  5. 5Innoko805 km
  6. 6Koyukuk805 km
  7. 7Noatak684 km
  8. 8Colville563 km
  9. 9Stikine539 km
  10. 10Iditarod523 km
  11. 11Susitna504 km
  12. 12Copper River460 km
  13. 13Kobuk451 km
  14. 14Nushagak451 km
  15. 15Meade404 km
  16. 16Nowitna402 km
  17. 17Kanuti366 km
  18. 18Utukok362 km
  19. 19Itkillik354 km
  20. 20Johnson340 km
  21. 21Kokolik322 km
  22. 22Kuparuk322 km
  23. 23Sheenjek320 km
  24. 24Stony310 km
  25. 25Ikpikpuk308 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.

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