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- Oregon >> United States 13
- Columbia River >> Clatsop County >> Oregon >> United States 10
- Memaloose Island (historical) >> Wasco County >> Oregon >> United States 4
- Cape Horn >> Skamania County >> Washington >> United States 2
- Columbia River >> Douglas County >> Washington >> United States 2
- Crown Point >> Multnomah County >> Oregon >> United States 2
- Multnomah Falls >> Multnomah County >> Oregon >> United States 2
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 2
- Pillars of Hercules >> Multnomah County >> Oregon >> United States 2
- Washington >> United States 2
- Willamette River >> Multnomah County >> Oregon >> United States 2