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Creator
- United States. Army. Office of the Chief of Engineers 54
- United States. War Department 38
- Powell, Charles Francis, 1843-1907 5
- Lorraine, Madison Johnson 4
- Wilson, John M. (John Moulder), 1837-1919 3
- Michler, N. (Nathaniel), 1827-1881 2
- Gillespie, G. L. 1
- Jones, William A. (William Albert), 1841-1914 1
- Pacific Northwest Regional Planning Commission 1
Topic
- River surveys 100
- River engineering 87
- United States--Appropriations and expenditures 63
- United States. Congress--Records and correspondence 40
- Rivers 32
- Bodies of water 28
- River channels 21
- Harbors 19
- Northwest, Pacific 15
- West (U.S.) 14
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 56
- Columbia River >> Clatsop County >> Oregon >> United States 50
- Oregon >> United States 35
- Washington >> United States 31
- Columbia River >> Douglas County >> Washington >> United States 29
- Portland >> Clackamas County >> Oregon >> United States 21
- Snake River >> Franklin County >> Washington >> United States 21
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 10
- Yamhill River >> Yamhill County >> Oregon >> United States 8
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Type
- Text 99
- Collection 1
Institution
- University of Oregon 100