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Region
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 9
- Oregon >> United States 7
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Multnomah Falls >> Multnomah County >> Oregon >> United States 4
- Celilo Falls (historical) >> Wasco County >> Oregon >> United States 2
- Horsetail Falls >> Multnomah County >> Oregon >> United States 2
- Latourell Falls >> Multnomah County >> Oregon >> United States 2
- Willamette River >> Multnomah County >> Oregon >> United States 2
- Columbia River >> Douglas County >> Washington >> United States 1
- Eagle Creek >> Clackamas County >> Oregon >> United States 1
- Memaloose Island (historical) >> Wasco County >> Oregon >> United States 1
- Saint Peters Dome >> Multnomah County >> Oregon >> United States 1
- Wahkeena Falls >> Multnomah County >> Oregon >> United States 1
- Washington >> United States 1
