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Creator
- United States. War Department 30
- Oregon Touring Bureau 7
- Powell, Charles Francis, 1843-1907 5
- Elliott, T. C. (Thompson Coit), 1862-1943 3
- Smith, Katherine Louise 3
- Wilson, John M. (John Moulder), 1837-1919 3
- Ballou, William Hosea, 1857-1937 2
- Gibson, Charles R. (Charles Robert), 1870-1931 2
- Gillespie, G. L. 2
- Kinney, M. J. H. 2
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Topic
- Rivers 134
- Northwest, Pacific 107
- Bodies of water 93
- Photography 81
- River engineering 44
- Riparian areas 35
- River surveys 32
- United States. Congress--Records and correspondence 32
- Mountains 31
- River channels 25
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Region
- Oregon >> United States 97
- Columbia River >> Douglas County >> Washington >> United States 65
- Columbia River >> Clatsop County >> Oregon >> United States 62
- Washington >> United States 50
- Willamette River >> Multnomah County >> Oregon >> United States 39
- Snake River >> Franklin County >> Washington >> United States 25
- California >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 13
- Idaho >> United States 9
- San Francisco Bay >> San Mateo County >> California >> United States 7
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Rights
- No Copyright - United States 134
Language
- English 134
Type
- Text 67
- Image 48
- Collection 19
Format
- image/tiff 42
- application/pdf 37
- image/jpeg 36
- application/xml 19