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Creator
- United States. War Department 28
- United States. Army. Corps of Engineers 6
- Powell, Charles Francis, 1843-1907 5
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- United States. Commodity Stabilization Service 2
- United States. Congress. House 2
- WAC Corp. 2
- Wilson, John M. (John Moulder), 1837-1919 2
- Doerksen, Harvey R. 1
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Topic
- Rivers 84
- Bodies of water 80
- Northwest, Pacific 68
- Photography 30
- River engineering 30
- United States. Congress--Records and correspondence 30
- River surveys 29
- Riparian areas 22
- River channels 22
- Harbors 21
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Region
- Washington >> United States 84
- Columbia River >> Douglas County >> Washington >> United States 80
- Oregon >> United States 67
- Willamette River >> Multnomah County >> Oregon >> United States 30
- Snake River >> Franklin County >> Washington >> United States 23
- California >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 12
- Idaho >> United States 9
- San Francisco Bay >> San Mateo County >> California >> United States 7
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
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Type
- Image 48
- Text 34
- Collection 2
Format
- application/pdf 33
- image/tiff 27
- image/jpeg 22
- application/xml 2