Prelims ask
Six countries in order of the usual list. Tonle Sap reversal. Vietnam delta. South China Sea.
Asia
Mekong
The great international river of mainland Southeast Asia.
- Source
- Qinghai–Tibet. In China the name is Lancang.
- Countries
- China, Myanmar, Laos, Thailand, Cambodia, Vietnam. Six.
- Direction
- South.
- Mouth
- South China Sea.
- Length
- About 4,350 km.
- Major tributaries
- Tonle Sap is the exam tributary: it reverses. Mun joins from Thailand.
- Delta or estuary
- Large delta in Vietnam.
- Basin
- Upstream dams in China against downstream fisheries and the Vietnamese delta. Tonle Sap lake fills in the flood and drains back in the dry season.
- One exam fact
- Six countries. Source name and mouth name differ in political terms: Lancang in China, Mekong after.
Mains use
The standard upstream–downstream dam dispute of Asia after the Himalayan rivers.