Region
- Memaloose Island (historical) >> Wasco County >> Oregon >> United States 4
- Saint Peters Dome >> Multnomah County >> Oregon >> United States 4
- Yaquina Bay >> Lincoln County >> Oregon >> United States 4
- Hood River >> Hood River County >> Oregon >> United States 3
- Montana >> United States 3
- Yamhill River >> Yamhill County >> Oregon >> United States 3
- Bonneville Dam >> Multnomah County >> Oregon >> United States 2
- Cape Horn >> Skamania County >> Washington >> United States 2
- Chehalis River >> Grays Harbor County >> Washington >> United States 2
- Coquille River >> Coos County >> Oregon >> United States 2
- Crown Point >> Multnomah County >> Oregon >> United States 2
- Horsetail Falls >> Multnomah County >> Oregon >> United States 2
- Maine >> United States 2
- Nehalem River >> Tillamook County >> Oregon >> United States 2
- Penobscot River >> Hancock County >> Maine >> United States 2
- Sacramento River >> Contra Costa County >> California >> United States 2
- San Joaquin River >> Contra Costa County >> California >> United States 2
- Skagit River >> Skagit County >> Washington >> United States 2
- Snake River >> Franklin County >> Washington >> United States 2
- Yakima River >> Benton County >> Washington >> United States 2