GeotchaA geography quiz on a real globe

Rivers in South America among the world’s 100 longest

23 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. 1Amazon6,400 km
2. 2Paraná4,880 km
3. 3Juruá3,100 km
4. 4Purus2,960 km
5. 5Japurá2,820 km
6. 6São Francisco2,814 km
7. 7Paraguay2,621 km
8. 8Tocantins2,450 km
9. 9Rio Negro2,250 km
10. 10Orinoco2,140 km
11. 11Mamoré1,930 km
12. 12Tapajós1,930 km
13. 13Araguaia1,910 km
14. 14Uruguay1,790 km
15. 15Marañón1,737 km
16. 16Xingu1,640 km
17. 17Putumayo1,610 km
18. 18Magdalena1,528 km
19. 19Desaguadero1,515 km
20. 20Guaviare1,497 km
21. 21Ucayali1,460 km
22. 22Madeira1,450 km
23. 23Parnaíba1,450 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. 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. Ranked in the world first: the 100 longest rivers of the world, and of those the ones in South America.

On the map

More in South America

• 25 largest cities in South America
• Countries of South America
• 25 largest regions in South America
• 24 largest lakes in South America
• 25 longest rivers in South America
• 25 highest peaks in South America
• 25 largest islands in South America
• 9 largest glaciers in South America by area
• Cities ranked 26–50 in South America
• 10 most populous countries in South America

Similar quizzes

• 25 longest rivers in Africa
• Rivers in Africa among the world’s 100 longest
• 25 longest rivers in Asia
• Rivers in Asia among the world’s 100 longest
• 25 longest rivers in Europe
• Rivers in Europe among the world’s 100 longest
• 25 longest rivers in North America
• Rivers in North America among the world’s 100 longest
• 25 longest rivers in Oceania
• 25 longest rivers in the Americas
• Longest river systems