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- Rivers--Oregon 59
- Dams 38
- Canals 16
- Flood control 8
- Fishways 6
- Salmon 5
- Fish screens 4
- Sawmills 4
- Power-plants 3
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Region
- Santiam River >> Marion County >> Oregon >> United States 59
- Willamette River >> Multnomah County >> Oregon >> United States 58
- Marion County >> Oregon >> United States 43
- Linn County >> Oregon >> United States 16
- McKenzie River >> Lane County >> Oregon >> United States 8
- Salem Ditch >> Marion County >> Oregon >> United States 4
- Mill City >> Linn County >> Oregon >> United States 3
- North Santiam River >> Linn County >> Oregon >> United States 3
- Little North Santiam River >> Marion County >> Oregon >> United States 2
- Mayflower Creek >> Marion County >> Oregon >> United States 2
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Rights
- In Copyright 59
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- image/tiff 49
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Decade
- 1940-1949 59
