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Topic
- Fishways 33
- Dams 31
- Rivers--Washington (State) 19
- Chinook salmon 9
- Rivers--Oregon 9
- Spillways 3
- Fish traps 2
- Hydroelectric power plants 2
- Flumes 1
- Power-plants 1
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Work Type
- gelatin silver prints 33
- negatives (photographs) 28
Region
- Chelan County >> Washington >> United States 16
- Columbia River >> Clatsop County >> Oregon >> United States 16
- Columbia River >> Douglas County >> Washington >> United States 16
- Willamette River >> Multnomah County >> Oregon >> United States 6
- Linn County >> Oregon >> United States 4
- Lane County >> Oregon >> United States 3
- Ada County >> Idaho >> United States 2
- Grangeville >> Idaho County >> Idaho >> United States 2
- South Fork Clearwater River >> Idaho County >> Idaho >> United States 2
- Wiley Creek >> Linn County >> Oregon >> United States 2
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Format
- image/tiff 29
- image/jpeg 4
Decade
- 1930-1939 33