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Topic
- Dams 37
- Rivers--Oregon 37
- Fishways 10
- Canals 4
- Hydroelectric power plants 4
- Salmon 1
- Spillways 1
Region
- Linn County >> Oregon >> United States 37
- Willamette River >> Multnomah County >> Oregon >> United States 36
- Calapooia River >> Linn County >> Oregon >> United States 8
- Marion County >> Oregon >> United States 6
- Santiam River >> Marion County >> Oregon >> United States 6
- Albany >> Linn County >> Oregon >> United States 5
- Crabtree Creek >> Linn County >> Oregon >> United States 4
- Lebanon >> Linn County >> Oregon >> United States 1
- Lebanon Dam >> Linn County >> Oregon >> United States 1
- Thomas Creek Bridge >> Curry County >> Oregon >> United States 1
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- image/tiff 37
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- Oregon State University 37
