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Creator
- United States. War Department 74
- Powell, Charles Francis, 1843-1907 3
- Wilson, John M. (John Moulder), 1837-1919 3
- Gibson, Charles R. (Charles Robert), 1870-1931 2
- Gillespie, G. L. 2
- Kinney, M. J. H. 2
- Michler, N. (Nathaniel), 1827-1881 2
- Smith, Katherine Louise 2
- United States. Army. Office of the Chief of Engineers 2
- United States. Department of the Interior 2
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Topic
- Northwest, Pacific 85
- United States. Congress--Records and correspondence 76
- River engineering 60
- Bodies of water 25
- Rivers 24
- Bridges--Design and construction 21
- River surveys 16
- River channels 13
- Rapids 12
- Canals 11
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 85
- Columbia River >> Douglas County >> Washington >> United States 44
- Oregon >> United States 32
- Washington >> United States 19
- Snake River >> Franklin County >> Washington >> United States 17
- Columbia River >> Clatsop County >> Oregon >> United States 6
- Coos Bay >> Coos County >> Oregon >> United States 6
- Cowlitz River >> Cowlitz County >> Washington >> United States 4
- Cathlamet Bay >> Clatsop County >> Oregon >> United States 3
- Chehalis River >> Grays Harbor County >> Washington >> United States 3
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Language
- English 85
Type
- Text 78
- Collection 6
- Image 1
Format
- image/jpeg 58
- application/pdf 20
- application/xml 6
- image/tiff 1