GeotchaA geography quiz on a real globe

25 longest rivers in Siberia

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. 1Irtysh4,248 km
  2. 2Nizhnyaya Tunguska2,989 km
  3. 3Vilyuy2,650 km
  4. 4Ishim2,450 km
  5. 5Aldan2,273 km
  6. 6Podkamennaya Tunguska1,865 km
  7. 7Vitim1,837 km
  8. 8Chulym1,799 km
  9. 9Angara1,779 km
  10. 10Ket1,621 km
  11. 11Argun1,620 km
  12. 12Tobol1,591 km
  13. 13Amga1,462 km
  14. 14Olyokma1,436 km
  15. 15Kotuy1,409 km
  16. 16Taz1,401 km
  17. 17Zeya1,242 km
  18. 18Uda1,203 km
  19. 19Markha1,181 km
  20. 20Demyanka1,160 km
  21. 21Orkhon1,124 km
  22. 22Konda1,097 km
  23. 23Tyung1,092 km
  24. 24Vasyugan1,082 km
  25. 25Bolshoy Yugan1,063 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. Siberia, as the gazetteer outlines it. 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.

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