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Creator
- United States. War Department 48
- Powell, Charles Francis, 1843-1907 5
- Michler, N. (Nathaniel), 1827-1881 2
- Wilson, John M. (John Moulder), 1837-1919 2
- Gillespie, G. L. 1
- Jones, William A. (William Albert), 1841-1914 1
- United States. Army. Office of the Chief of Engineers 1
- United States. Department of the Interior 1
Topic
- United States. Congress--Records and correspondence 51
- River engineering 50
- Northwest, Pacific 38
- Bodies of water 28
- Rivers 28
- River surveys 26
- River channels 21
- Harbors 19
- Canals 14
- West (U.S.) 13
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Region
- Oregon >> United States 51
- Columbia River >> Douglas County >> Washington >> United States 44
- Willamette River >> Multnomah County >> Oregon >> United States 35
- Washington >> United States 33
- Snake River >> Franklin County >> Washington >> United States 22
- Coos Bay >> Coos County >> Oregon >> United States 12
- California >> United States 11
- Idaho >> United States 7
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
- San Francisco Bay >> San Mateo County >> California >> United States 6
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Format
- application/pdf 28
- image/jpeg 23
Institution
- University of Oregon 51