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Creator
- United States. Army. Office of the Chief of Engineers 57
- United States. War Department 43
- Powell, Charles Francis, 1843-1907 5
- Lorraine, Madison Johnson 4
- Wilson, John M. (John Moulder), 1837-1919 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- United States. Congress. House 2
- Jones, William A. (William Albert), 1841-1914 1
- Pacific Northwest Regional Planning Commission 1
Topic
- River surveys 108
- River engineering 95
- United States--Appropriations and expenditures 66
- United States. Congress--Records and correspondence 45
- Rivers 35
- Bodies of water 32
- Harbors 22
- River channels 22
- Northwest, Pacific 17
- West (U.S.) 17
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 64
- Columbia River >> Clatsop County >> Oregon >> United States 54
- Oregon >> United States 39
- Washington >> United States 35
- Columbia River >> Douglas County >> Washington >> United States 33
- Portland >> Clackamas County >> Oregon >> United States 24
- Snake River >> Franklin County >> Washington >> United States 23
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 12
- Astoria >> Clatsop County >> Oregon >> United States 10
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License
- Creative Commons: Public Domain Mark 1.0 108
Type
- Text 102
- Collection 6