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Creator
- United States. War Department 123
- Powell, Charles Francis, 1843-1907 5
- Wilson, John M. (John Moulder), 1837-1919 3
- Ballou, William Hosea, 1857-1937 2
- Michler, N. (Nathaniel), 1827-1881 2
- Willey, Day Allen 2
- Woehlke, Walter Victor, 1881-1954 2
- Gillespie, G. L. 1
- Jones, William A. (William Albert), 1841-1914 1
- Volkman, John M. 1
Topic
- River engineering 141
- Northwest, Pacific 128
- United States. Congress--Records and correspondence 124
- Rivers 40
- Harbors 31
- Bodies of water 29
- River surveys 27
- River channels 26
- Rapids 23
- Canals 17
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Region
- Columbia River >> Douglas County >> Washington >> United States 77
- Willamette River >> Multnomah County >> Oregon >> United States 70
- Oregon >> United States 54
- Washington >> United States 46
- Snake River >> Franklin County >> Washington >> United States 28
- Columbia River >> Clatsop County >> Oregon >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 13
- California >> United States 11
- Idaho >> United States 7
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
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Language
- English 141
Type
- Text 134
- Collection 7
Format
- image/jpeg 104
- application/pdf 30
- application/xml 7
Institution
- University of Oregon 141