GeotchaA geography quiz on a real globe

Longest river of each country

101 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. 4Paraná4,880 km
  5. 5Congo4,700 km
  6. 6Mekong4,350 km
  7. 7Lena4,294 km
  8. 8Irtysh4,248 km
  9. 9Niger4,180 km
  10. 10Mississippi3,766 km
  11. 11Yukon3,190 km
  12. 12Indus3,180 km
  13. 13Rio Grande3,051 km
  14. 14Brahmaputra2,900 km
  15. 15Danube2,850 km
  16. 16Euphrates2,800 km
  17. 17Paraguay2,621 km
  18. 18Amu Darya2,620 km
  19. 19Zambezi2,574 km
  20. 20Murray2,530 km
  21. 21Dnieper2,285 km
  22. 22Rio Negro2,250 km
  23. 23Orange River2,200 km
  24. 24Uruguay1,790 km
  25. 25Blue Nile1,783 km
  26. 26Limpopo1,750 km
  27. 27Jubba1,658 km
  28. 28Putumayo1,610 km
  29. 29Volta1,500 km
  30. 30Chari1,400 km
  31. 31Kura1,360 km
  32. 32Dniester1,352 km
  33. 33Chu1,318 km
  34. 34Kherlen1,254 km
  35. 35Rhine1,233 km
  36. 36Hari1,150 km
  37. 37Kapuas1,143 km
  38. 38Gambia1,130 km
  39. 39Sepik1,126 km
  40. 40Draa1,100 km
  41. 41Elbe1,094 km
  42. 42Ghaghara1,080 km
  43. 43Aras1,072 km
  44. 44Senegal1,050 km
  45. 45Vistula1,047 km
  46. 46Daugava1,020 km
  47. 47Essequibo1,014 km
  48. 48Tagus1,007 km
  49. 49Meuse950 km
  50. 50Sava945 km
  51. 51Neman937 km
  52. 52Oti900 km
  53. 53Ogooué850 km
  54. 54Yalu813 km
  55. 55Ruvuma800 km
  56. 56Tana800 km
  57. 57Coco780 km
  58. 58Courantyne724 km
  59. 59Drava720 km
  60. 60Tekezé608 km

and 41 more, all in the quiz.

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. One per group: the longest river of each country by this measure, then ranked together.

On the map

Map of Longest river of each country, 101 rivers: each one marked on the globe

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