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Region
- Abiqua Creek >> Marion County >> Oregon >> United States 1
- Ada County >> Idaho >> United States 2
- Asotin County >> Washington >> United States 2
- Benton County >> Washington >> United States 1
- Bonneville Dam >> Multnomah County >> Oregon >> United States 10
- Burlingame Dam >> Benton County >> Washington >> United States 1
- Calapooia River >> Linn County >> Oregon >> United States 2
- Carlton >> Yamhill County >> Oregon >> United States 3
- Cazadero (historical) >> Clackamas County >> Oregon >> United States 2
- Cazadero Dam >> Clackamas County >> Oregon >> United States 2
- Chelan County >> Washington >> United States 18
- Clackamas County >> Oregon >> United States 7
- Clackamas River >> Clackamas County >> Oregon >> United States 8
- Clark County >> Washington >> United States 2
- Clearwater River >> Nez Perce County >> Idaho >> United States 5
- Columbia River >> Clatsop County >> Oregon >> United States 29
- Columbia River >> Douglas County >> Washington >> United States 18
- Crabtree Creek >> Linn County >> Oregon >> United States 2
- Deschutes River >> Sherman County >> Oregon >> United States 2
- Easton Diversion Dam >> Kittitas County >> Washington >> United States 1
