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Creator
- United States. War Department 22
- Powell, Charles Francis, 1843-1907 5
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- Wilson, John M. (John Moulder), 1837-1919 2
- Jones, William A. (William Albert), 1841-1914 1
Topic
- River engineering 22
- River surveys 22
- United States. Congress--Records and correspondence 22
- Bodies of water 21
- Rivers 21
- River channels 20
- Harbors 15
- Northwest, Pacific 13
- Canals 12
- Rapids 9
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Region
- Columbia River >> Douglas County >> Washington >> United States 22
- Snake River >> Franklin County >> Washington >> United States 22
- Willamette River >> Multnomah County >> Oregon >> United States 22
- Oregon >> United States 21
- Washington >> United States 21
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 6
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
- Idaho >> United States 6
- Cowlitz River >> Cowlitz County >> Washington >> United States 5
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Type
- Text 21
- Collection 1