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Creator
- United States. War Department 30
- United States. Army. Corps of Engineers 7
- Powell, Charles Francis, 1843-1907 5
- Wilson, John M. (John Moulder), 1837-1919 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- United States. Commodity Stabilization Service 2
- United States. Congress. House 2
- United States. Department of the Interior 2
- WAC Corp. 2
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Topic
- Bodies of water 102
- Rivers 98
- Northwest, Pacific 87
- Photography 47
- Riparian areas 33
- River engineering 33
- United States. Congress--Records and correspondence 32
- River surveys 31
- River channels 23
- Harbors 21
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Region
- Columbia River >> Douglas County >> Washington >> United States 102
- Washington >> United States 82
- Oregon >> United States 70
- Willamette River >> Multnomah County >> Oregon >> United States 35
- Snake River >> Franklin County >> Washington >> United States 26
- California >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 13
- Idaho >> United States 10
- 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 58
- Text 40
- Collection 4
Format
- application/pdf 39
- image/tiff 37
- image/jpeg 22
- application/xml 4