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Creator
- United States. War Department 113
- United States. Bonneville Power Administration 23
- United States. Department of the Interior 23
- Elliott, T. C. (Thompson Coit), 1862-1943 8
- Rosenthal, Abraham, 1870-1929 6
- Warren, George C., 1877- 6
- Pond, James B. (James Burton), 1889-1961 4
- Smith, Katherine Louise 3
- Gibson, Charles R. (Charles Robert), 1870-1931 2
- Kinney, M. J. H. 2
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Topic
- Northwest, Pacific 208
- United States. Congress--Records and correspondence 112
- River engineering 105
- Photography 50
- Rivers 27
- Water-power 21
- Scenic byways 20
- Highway engineering 19
- Bridges--Design and construction 16
- Rapids 15
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Region
- Columbia River >> Douglas County >> Washington >> United States 80
- Willamette River >> Multnomah County >> Oregon >> United States 58
- Oregon >> United States 52
- Columbia River >> Clatsop County >> Oregon >> United States 45
- Washington >> United States 34
- Snake River >> Franklin County >> Washington >> United States 6
- Bonneville Dam >> Multnomah County >> Oregon >> United States 5
- Cathlamet Bay >> Clatsop County >> Oregon >> United States 4
- Multnomah Falls >> Multnomah County >> Oregon >> United States 3
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 3
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Language
- English 208
Format
- image/jpeg 208