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Creator
- United States. War Department 131
- United States. Department of the Interior 26
- United States. Bonneville Power Administration 24
- Elliott, T. C. (Thompson Coit), 1862-1943 9
- Rosenthal, Abraham, 1870-1929 7
- Warren, George C., 1877- 7
- Pond, James B. (James Burton), 1889-1961 5
- Smith, Katherine Louise 4
- Gibson, Charles R. (Charles Robert), 1870-1931 3
- Kinney, M. J. H. 3
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Topic
- Northwest, Pacific 307
- River engineering 132
- United States. Congress--Records and correspondence 132
- Photography 113
- Rivers 107
- Bodies of water 85
- Riparian areas 41
- Water-power 28
- Mountains 26
- Rapids 26
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Region
- Columbia River >> Douglas County >> Washington >> United States 130
- Oregon >> United States 128
- Willamette River >> Multnomah County >> Oregon >> United States 85
- Columbia River >> Clatsop County >> Oregon >> United States 84
- Washington >> United States 76
- Snake River >> Franklin County >> Washington >> United States 25
- Multnomah Falls >> Multnomah County >> Oregon >> United States 7
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 7
- Bonneville Dam >> Multnomah County >> Oregon >> United States 6
- Coos Bay >> Coos County >> Oregon >> United States 6
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Language
- English 307
Type
- Text 228
- Image 54
- Collection 25
Format
- image/jpeg 208
- image/tiff 48
- application/pdf 26
- application/xml 25