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Topic
- Dams 135
- Rivers--Oregon 101
- Salmon 50
- Fishes--Conservation 35
- Flood control 32
- Lectures and lecturing 31
- Inland water transportation 14
- Water--Pollution 11
- Irrigation 8
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 67
- Columbia River >> Clatsop County >> Oregon >> United States 39
- Santiam River >> Marion County >> Oregon >> United States 21
- Bonneville Dam >> Multnomah County >> Oregon >> United States 12
- McKenzie River >> Lane County >> Oregon >> United States 11
- Roosevelt >> Gila County >> Arizona >> United States 9
- Sweet Home >> Linn County >> Oregon >> United States 7
- Grand Coulee Dam >> Okanogan County >> Washington >> United States 5
- Theodore Roosevelt Dam >> Gila County >> Arizona >> United States 5
- Portland >> Washington County >> Oregon >> United States 4
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- Text 116
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- application/pdf 116
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Collection
- Reuniting Finley and Bohlman 135
- OSU Special Collections & Archives Research Center 118
