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Creator
- United States. War Department 128
- Powell, Charles Francis, 1843-1907 5
- Wilson, John M. (John Moulder), 1837-1919 3
- Ballou, William Hosea, 1857-1937 2
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- United States. Congress. House 2
- Willey, Day Allen 2
- Woehlke, Walter Victor, 1881-1954 2
- Fisk, W. L. (Walter Leslie), 1855- 1
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Topic
- River engineering 147
- Northwest, Pacific 132
- United States. Congress--Records and correspondence 128
- Rivers 44
- Harbors 34
- Bodies of water 33
- River surveys 31
- River channels 27
- Rapids 26
- Canals 19
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Region
- Columbia River >> Douglas County >> Washington >> United States 82
- Willamette River >> Multnomah County >> Oregon >> United States 75
- Oregon >> United States 58
- Washington >> United States 51
- Snake River >> Franklin County >> Washington >> United States 30
- California >> United States 13
- Columbia River >> Clatsop County >> Oregon >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 13
- Idaho >> United States 7
- San Francisco Bay >> San Mateo County >> California >> United States 7
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Rights
- No Copyright - United States 147
Language
- English 147
Type
- Text 138
- Collection 9
Format
- image/jpeg 105
- application/pdf 33
- application/xml 9