GeotchaA geography quiz on a real globe

22 longest rivers flowing into the South China Sea

22 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. 1Mekong4,350 km
2. 2Red River1,149 km
3. 3Kapuas1,143 km
4. 4Batang Hari800 km
5. 5Dong Nai586 km
6. 6Batang Rajang563 km
7. 7Cả River513 km
8. 8Ma River512 km
9. 9Cagayan505 km
10. 10Musi500 km
11. 11Pahang459 km
12. 12Han (Guangdong)410 km
13. 13Baram400 km
14. 14Chao Phraya372 km
15. 15Bang Pakong294 km
16. 16Pampanga260 km
17. 17Day240 km
18. 18Pattani214 km
19. 19Sungai Belait209 km
20. 20Agno206 km
21. 21Landak200 km
22. 22Pasig25 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. Flowing into the South China Sea: the rivers whose mouth Wikidata records as the South China Sea or a sea, gulf or bay inside it, as the IHO's sea areas nest (the North Sea lies in the Atlantic, the Adriatic in the Mediterranean) (P403); their tributaries are left out.

On the map

More in South China Sea

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• 25 longest rivers of the South China Sea basin

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