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Creator
- United States. War Department 14
- Powell, Charles Francis, 1843-1907 2
- United States. Congress. House 2
- Jones, William A. (William Albert), 1841-1914 1
Topic
- Bodies of water 14
- River engineering 14
- River surveys 14
- Rivers 14
- United States. Congress--Records and correspondence 14
- West (U.S.) 14
- Harbors 13
- River channels 10
- Rapids 5
- Canals 3
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Region
- Columbia River >> Douglas County >> Washington >> United States 14
- Oregon >> United States 14
- Washington >> United States 14
- Willamette River >> Multnomah County >> Oregon >> United States 14
- California >> United States 11
- Snake River >> Franklin County >> Washington >> United States 9
- Coos Bay >> Coos County >> Oregon >> United States 7
- San Francisco Bay >> San Mateo County >> California >> United States 7
- Clearwater River >> Nez Perce County >> Idaho >> United States 5
- Idaho >> United States 5
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