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Creator
- United States. War Department 76
- United States. Department of the Interior 18
- United States. Bonneville Power Administration 16
- Elliott, T. C. (Thompson Coit), 1862-1943 11
- Powell, Charles Francis, 1843-1907 5
- United States. Bureau of Reclamation 3
- Wilson, John M. (John Moulder), 1837-1919 3
- Gillespie, G. L. 2
- Michler, N. (Nathaniel), 1827-1881 2
- Rogers, W. A. (William A.) 2
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Topic
- Northwest, Pacific 130
- River engineering 82
- United States. Congress--Records and correspondence 78
- Rivers 65
- Bodies of water 59
- River surveys 33
- Photography 30
- Rapids 26
- Harbors 23
- River channels 23
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Region
- Columbia River >> Douglas County >> Washington >> United States 151
- Oregon >> United States 74
- Washington >> United States 72
- Willamette River >> Multnomah County >> Oregon >> United States 59
- Snake River >> Franklin County >> Washington >> United States 29
- California >> United States 13
- Coos Bay >> Coos County >> Oregon >> United States 13
- Idaho >> United States 12
- San Francisco Bay >> San Mateo County >> California >> United States 7
- Bonneville Dam >> Multnomah County >> Oregon >> United States 6
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License
- Creative Commons: Public Domain Mark 1.0 151
Language
- English 151
Type
- Text 121
- Image 17
- Collection 13
Format
- image/jpeg 84
- application/pdf 40
- image/tiff 14
- application/xml 13