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Topic
- Mountains 2
- Photography 2
- Rivers 2
- Scenic byways 2
- Tunnels 2
- Waterfalls 2
- Bridges 1
- Highway engineering 1
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Region
- Horsetail Falls >> Multnomah County >> Oregon >> United States 2
- Multnomah Falls >> Multnomah County >> Oregon >> United States 2
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 2
- Celilo Falls (historical) >> Wasco County >> Oregon >> United States 1
- Columbia River >> Clatsop County >> Oregon >> United States 1
- Eagle Creek >> Clackamas County >> Oregon >> United States 1
- Latourell Falls >> Multnomah County >> Oregon >> United States 1
- Oregon >> United States 1
- Saint Peters Dome >> Multnomah County >> Oregon >> United States 1
- Wahkeena Falls >> Multnomah County >> Oregon >> United States 1
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