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Creator
- United States. Army. Office of the Chief of Engineers 25
- United States. War Department 20
- Powell, Charles Francis, 1843-1907 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- Wilson, John M. (John Moulder), 1837-1919 2
- Doerksen, Harvey R. 1
- United States. Army. Corps of Engineers 1
- United States. Army. Corps of Engineers. North Pacific Division 1
Topic
- Northwest, Pacific 49
- Bodies of water 42
- Rivers 40
- Transportation 26
- Water resources development 26
- Canals--Design and construction--Costs 25
- Dams--Design and construction 25
- West (U.S.) 25
- River engineering 21
- United States. Congress--Records and correspondence 21
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Region
- Snake River >> Franklin County >> Washington >> United States 49
- Willamette River >> Multnomah County >> Oregon >> United States 41
- Cowlitz River >> Cowlitz County >> Washington >> United States 27
- Chehalis River >> Grays Harbor County >> Washington >> United States 25
- Columbia River >> Clatsop County >> Oregon >> United States 25
- Portland >> Clackamas County >> Oregon >> United States 25
- Nooksack River >> Whatcom County >> Washington >> United States 23
- Skagit River >> Skagit County >> Washington >> United States 23
- Columbia River >> Douglas County >> Washington >> United States 20
- Snohomish River >> Snohomish County >> Washington >> United States 20
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Type
- Text 45
- Collection 4