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Creator
- United States. War Department 16
- Powell, Charles Francis, 1843-1907 3
- Wilson, John M. (John Moulder), 1837-1919 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- United States. Department of the Interior 2
- Doerksen, Harvey R. 1
- Pacific Northwest Regional Planning Commission 1
- United States. Army. Corps of Engineers 1
- United States. Army. Corps of Engineers. North Pacific Division 1
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Topic
- Bodies of water 25
- Northwest, Pacific 25
- Rivers 21
- River engineering 18
- United States. Congress--Records and correspondence 18
- River surveys 16
- River channels 13
- Canals 10
- United States--Armed Forces--Organization--Charts, diagrams, etc 9
- Harbors 8
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Region
- Columbia River >> Douglas County >> Washington >> United States 25
- Oregon >> United States 24
- Washington >> United States 23
- Willamette River >> Multnomah County >> Oregon >> United States 20
- Snake River >> Franklin County >> Washington >> United States 17
- Coos Bay >> Coos County >> Oregon >> United States 6
- Idaho >> United States 5
- Montana >> United States 3
- California >> United States 2
- Nehalem River >> Tillamook County >> Oregon >> United States 2
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License
- Creative Commons: Public Domain Mark 1.0 25
Format
- application/pdf 25