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Water Basin
- Helmand Rōd >> Afghanistan 16
- Saint Lawrence River >> Franklin County >> New York >> United States 6
- St. Lawrence 6
- Danube River >> Romania 3
- Danube 3
- Fiume Isonzo 3
- Isonzo 3
- Nile River >> Egypt 3
- Nile 3
- Po River 3
- Po 3
- Amazon River >> Brazil 2
- Amazon 2
- Jordan River >> Israel 2
- La Plata 2
- Rio Grande >> Mexico >> North America 2
- Río Zarumilla 2
- Río de la Plata 2
- Zarumilla 2
- Aral Sea 1