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Creator
- United States. War Department 37
- United States. Department of the Interior 7
- Pond, James B. (James Burton), 1889-1961 5
- United States. Bonneville Power Administration 5
- Smith, Katherine Louise 4
- Gibson, Charles R. (Charles Robert), 1870-1931 3
- Kinney, M. J. H. 3
- Powell, Charles Francis, 1843-1907 3
- Ballou, William Hosea, 1857-1937 2
- Gillespie, G. L. 2
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Topic
- Northwest, Pacific 128
- Bodies of water 73
- Rivers 73
- Photography 72
- River engineering 44
- United States. Congress--Records and correspondence 39
- Riparian areas 26
- Mountains 17
- River channels 16
- River surveys 16
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Region
- Oregon >> United States 128
- Columbia River >> Douglas County >> Washington >> United States 58
- Washington >> United States 51
- Columbia River >> Clatsop County >> Oregon >> United States 48
- Willamette River >> Multnomah County >> Oregon >> United States 32
- Snake River >> Franklin County >> Washington >> United States 18
- Coos Bay >> Coos County >> Oregon >> United States 5
- Idaho >> United States 5
- Oneonta Gorge >> Multnomah County >> Oregon >> United States 5
- Pillars of Hercules >> Multnomah County >> Oregon >> United States 5
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Language
- English 128
Type
- Text 72
- Image 44
- Collection 12
Format
- image/jpeg 52
- image/tiff 39
- application/pdf 25
- application/xml 12