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Creator
- United States. War Department 33
- Powell, Charles Francis, 1843-1907 5
- United States. Congress. House 2
- Hartshorn, Florence M., 1869-1943 1
- Hunt, P. S. (Phinney S.), 1866-1917 1
- Jones, William A. (William Albert), 1841-1914 1
- Michler, N. (Nathaniel), 1827-1881 1
- United States. Army. Office of the Chief of Engineers 1
Topic
- Harbors 40
- River engineering 34
- United States. Congress--Records and correspondence 34
- Bodies of water 23
- River surveys 22
- Northwest, Pacific 21
- Rivers 21
- River channels 14
- West (U.S.) 13
- Rapids 8
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Region
- Washington >> United States 34
- Columbia River >> Douglas County >> Washington >> United States 23
- Willamette River >> Multnomah County >> Oregon >> United States 23
- Oregon >> United States 22
- Snake River >> Franklin County >> Washington >> United States 16
- California >> United States 12
- Coos Bay >> Coos County >> Oregon >> United States 11
- San Francisco Bay >> San Mateo County >> California >> United States 7
- Idaho >> United States 6
- San Diego River >> San Diego County >> California >> United States 6
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Rights
- No Copyright - United States 40
License
- Creative Commons: Public Domain Mark 1.0 40
Type
- Text 34
- Image 5
- Collection 1
Format
- application/pdf 21
- image/jpeg 14
- image/tiff 4
- application/xml 1