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Creator
- United States. War Department 27
- 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
- United States. Commodity Stabilization Service 2
- WAC Corp. 2
- Doerksen, Harvey R. 1
- Ford, J. F. (John Fletcher) 1
- Gillespie, G. L. 1
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Topic
- Bodies of water 94
- Rivers 94
- Northwest, Pacific 81
- Photography 44
- Riparian areas 32
- River engineering 29
- United States. Congress--Records and correspondence 29
- River surveys 28
- River channels 22
- Mountains 20
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Region
- Columbia River >> Douglas County >> Washington >> United States 94
- Washington >> United States 75
- Oregon >> United States 63
- Willamette River >> Multnomah County >> Oregon >> United States 29
- Snake River >> Franklin County >> Washington >> United States 23
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 11
- Idaho >> United States 9
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
- San Francisco Bay >> San Mateo County >> California >> United States 6
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Type
- Image 58
- Text 33
- Collection 3
Format
- image/tiff 37
- application/pdf 32
- image/jpeg 22
- application/xml 3
Institution
- University of Oregon 94