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Creator
- United States. War Department 64
- United States. Department of the Interior 18
- United States. Bonneville Power Administration 16
- Elliott, T. C. (Thompson Coit), 1862-1943 8
- Powell, Charles Francis, 1843-1907 3
- Wilson, John M. (John Moulder), 1837-1919 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- Doerksen, Harvey R. 1
- Pacific Northwest Regional Planning Commission 1
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Topic
- Northwest, Pacific 107
- River engineering 67
- United States. Congress--Records and correspondence 66
- Bodies of water 26
- Rivers 26
- Water-power 20
- Rapids 16
- River surveys 16
- Canals 14
- River channels 13
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Region
- Columbia River >> Douglas County >> Washington >> United States 107
- Oregon >> United States 45
- Willamette River >> Multnomah County >> Oregon >> United States 42
- Washington >> United States 35
- Snake River >> Franklin County >> Washington >> United States 19
- Coos Bay >> Coos County >> Oregon >> United States 6
- Idaho >> United States 5
- Bonneville Dam >> Multnomah County >> Oregon >> United States 4
- Montana >> United States 3
- California >> United States 2
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Rights
- No Copyright - United States 107
Type
- Text 107
Format
- image/jpeg 82
- application/pdf 25