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Creator
- Oregon Journal (Firm) 16
- Oregonian (Firm) 12
- Statesman Journal 7
- Oregon City Enterprise Courier (Oregon City, Or.) 6
- The Daily Astorian 6
- The Register-Guard 6
- United States. Bonneville Power Administration 5
- United States. Department of the Interior 5
- Izaak Walton League of America 4
- United States. Army. Corps of Engineers 4
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Topic
- Dams 181
- Rivers--Oregon 147
- Fishways 34
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- Salmon 24
- Fishes--Conservation 20
- Canals 16
- Hydroelectric power plants 15
- Irrigation 10
- Northwest, Pacific 9
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 126
- Santiam River >> Marion County >> Oregon >> United States 38
- Marion County >> Oregon >> United States 34
- Linn County >> Oregon >> United States 32
- Columbia River >> Clatsop County >> Oregon >> United States 22
- Yamhill County >> Oregon >> United States 20
- Yamhill River >> Yamhill County >> Oregon >> United States 20
- Columbia River >> Douglas County >> Washington >> United States 15
- Clackamas County >> Oregon >> United States 11
- South Yamhill River >> Yamhill County >> Oregon >> United States 11
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Type
- Image 132
- Text 48
- Collection 1
Format
- image/tiff 124
- application/pdf 44
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- application/xml 1
Collection
- Pacific Northwest Stream Survey 120
- OSU Special Collections & Archives Research Center 47
- Reuniting Finley and Bohlman 39
- Western Waters Digital Library 9
- Oregon Explorer 5
- The Middle East Water Collection 5
- Gerald W. Williams Collection 4
- Historical Images of Oregon State University 3
- Gifford Photographic Collection 1
Decade
- 1940-1949 181
