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Creator
- United States. Army. Corps of Engineers 6
- WAC Corp. 4
- United States. Commodity Stabilization Service 2
- United States. Department of the Interior 2
- United States. Forest Service 2
- EROS Data Center 1
- United States. Agricultural Stabilization and Conservation Service 1
- United States. Army Map Service 1
- United States. Bonneville Power Administration 1
Topic
- Dams 29
- Northwest, Pacific 25
- Bodies of water 24
- Aerial photographs 23
- Rivers 23
- Maps 4
- Rivers--Oregon 3
- Hydroelectric power plants 2
- Industrialization 2
- Water-power 2
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Region
- Oregon >> United States 29
- Columbia River >> Douglas County >> Washington >> United States 20
- Washington >> United States 20
- Bonneville Dam >> Multnomah County >> Oregon >> United States 6
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Flathead River >> Sanders County >> Montana >> United States 1
- Grand Coulee Dam >> Okanogan County >> Washington >> 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
Type
- Image 26
- Collection 2
- Text 1