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Water Basin
- Saint Lawrence River >> Franklin County >> New York >> United States 10
- St. Lawrence 10
- Colorado River 8
- Colorado 8
- Rio Grande (North America) 6
- Rio Grande >> Mexico >> North America 6
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Columbia 5
- Mississippi River Delta >> Plaquemines Parish >> Louisiana >> United States 3
- Mississippi 3
- Nelson River >> Manitoba >> Canada 3
- Nelson-Saskatchewan 3
- Saskatchewan River >> Manitoba >> Canada 3
- Fraser River >> British Columbia >> Canada 2
- Fraser 2
- Saint Croix River >> Washington County >> Maine >> United States 2
- Saint John River >> New Brunswick >> Canada 2
- Skagit River >> Skagit County >> Washington >> United States 2
- Skagit 2
- St. Croix 2