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Creator
- United States. War Department 48
- United States. Army. Office of the Chief of Engineers 16
- Powell, Charles Francis, 1843-1907 5
- Ballou, William Hosea, 1857-1937 2
- Michler, N. (Nathaniel), 1827-1881 2
- Wilson, John M. (John Moulder), 1837-1919 2
- Gillespie, G. L. 1
- Jones, William A. (William Albert), 1841-1914 1
- Volkman, John M. 1
Topic
- River engineering 71
- United States. Congress--Records and correspondence 50
- Northwest, Pacific 44
- River surveys 34
- Bodies of water 31
- Rivers 30
- River channels 25
- Harbors 19
- United States--Appropriations and expenditures 15
- West (U.S.) 15
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Region
- Oregon >> United States 71
- Columbia River >> Douglas County >> Washington >> United States 44
- Washington >> United States 41
- Willamette River >> Multnomah County >> Oregon >> United States 40
- Snake River >> Franklin County >> Washington >> United States 22
- Columbia River >> Clatsop County >> Oregon >> United States 17
- Coos Bay >> Coos County >> Oregon >> United States 12
- California >> United States 11
- Idaho >> United States 7
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
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Type
- Text 69
- Collection 2
Institution
- University of Oregon 71