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Topic
- Dams 13
- Hydroelectric power plants 13
- Rivers--Oregon 13
- Fishways 5
- Power-plants 4
Work Type
- gelatin silver prints 13
- negatives (photographs) 13
Region
- Willamette River >> Multnomah County >> Oregon >> United States 13
- South Yamhill River >> Yamhill County >> Oregon >> United States 9
- Willamina Creek >> Yamhill County >> Oregon >> United States 9
- Yamhill County >> Oregon >> United States 9
- Yamhill River >> Yamhill County >> Oregon >> United States 9
- Linn County >> Oregon >> United States 2
- Albany >> Linn County >> Oregon >> United States 1
- Clackamas County >> Oregon >> United States 1
- Clackamas River >> Clackamas County >> Oregon >> United States 1
- Marion County >> Oregon >> United States 1
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Format
- image/tiff 13
Decade
- 1940-1949 13