Region
- South Yamhill River >> Yamhill County >> Oregon >> United States 5
- Tualatin River >> Clackamas County >> Oregon >> United States 5
- Willamina Creek >> Yamhill County >> Oregon >> United States 5
- Sunnyside Dam >> Yakima County >> Washington >> United States 4
- Union County >> Oregon >> United States 4
- Washington County >> Oregon >> United States 4
- Carlton >> Yamhill County >> Oregon >> United States 3
- Gales Creek >> Washington County >> Oregon >> United States 3
- Lane County >> Oregon >> United States 3
- Nez Perce County >> Idaho >> United States 3
- River Mill Dam >> Clackamas County >> Oregon >> United States 3
- Wapato Lake Dam >> Chelan County >> Washington >> United States 3
- Ada County >> Idaho >> United States 2
- Asotin County >> Washington >> United States 2
- Calapooia River >> Linn County >> Oregon >> United States 2
- Cazadero (historical) >> Clackamas County >> Oregon >> United States 2
- Cazadero Dam >> Clackamas County >> Oregon >> United States 2
- Clark County >> Washington >> United States 2
- Crabtree Creek >> Linn County >> Oregon >> United States 2
- Deschutes River >> Sherman County >> Oregon >> United States 2
