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Creator
- United States. War Department 75
- United States. Department of the Interior 18
- United States. Bonneville Power Administration 17
- Elliott, T. C. (Thompson Coit), 1862-1943 11
- United States. Army. Corps of Engineers 6
- Powell, Charles Francis, 1843-1907 5
- Wilson, John M. (John Moulder), 1837-1919 3
- Michler, N. (Nathaniel), 1827-1881 2
- Rogers, W. A. (William A.) 2
- Shaw, Emma 2
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Topic
- Northwest, Pacific 171
- Rivers 104
- Bodies of water 94
- River engineering 80
- United States. Congress--Records and correspondence 77
- Photography 54
- Riparian areas 33
- River surveys 29
- Rapids 24
- Dams 23
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Region
- Columbia River >> Douglas County >> Washington >> United States 189
- Washington >> United States 92
- Oregon >> United States 88
- Willamette River >> Multnomah County >> Oregon >> United States 52
- Snake River >> Franklin County >> Washington >> United States 25
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 11
- Bonneville Dam >> Multnomah County >> Oregon >> United States 10
- Idaho >> United States 9
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
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Type
- Text 116
- Image 61
- Collection 12
Format
- image/jpeg 104
- image/tiff 40
- application/pdf 33
- application/xml 12
Collection
- Western Waters Digital Library 189
- Angelus Studio photographs, 1880s-1940s 23
Institution
- University of Oregon 189