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Topic
- Dams 13
- Northwest, Pacific 13
- Bodies of water 8
- Aerial photographs 7
- Rivers 7
- Water-power 5
- Maps 4
- Hydroelectric power plants 3
- Irrigation 3
- Industrialization 2
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Region
- Oregon >> United States 9
- Columbia River >> Douglas County >> Washington >> United States 8
- Bonneville Dam >> Multnomah County >> Oregon >> United States 7
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Washington >> United States 4
- Grand Coulee Dam >> Okanogan County >> Washington >> United States 3
- Flathead River >> Sanders County >> Montana >> United States 1
- Santiam River >> Marion County >> Oregon >> United States 1
- Skagit River >> Skagit County >> Washington >> United States 1
- Willamette River >> Multnomah County >> Oregon >> United States 1
License
- Creative Commons: Public Domain Mark 1.0 13
Type
- Image 6
- Text 5
- Collection 2
Collection
- Western Waters Digital Library 13