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Creator
- United States. Army. Office of the Chief of Engineers 151
- United States. War Department 97
- Fisk, W. L. (Walter Leslie), 1855- 76
- Harts, W. W. (William Wright), 1866-1961 76
- Powell, Charles Francis, 1843-1907 5
- 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
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 260
- Columbia River >> Clatsop County >> Oregon >> United States 143
- Yamhill River >> Yamhill County >> Oregon >> United States 93
- Snake River >> British Columbia >> Canada 82
- Cascade Locks >> Hood River County >> Oregon >> United States 79
- Portland >> Clackamas County >> Oregon >> United States 65
- Columbia River >> Douglas County >> Washington >> United States 59
- Oregon >> United States 53
- Snake River >> Franklin County >> Washington >> United States 50
- Cowlitz River >> Cowlitz County >> Washington >> United States 39
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License
- Creative Commons: Public Domain Mark 1.0 260
Type
- Text 243
- Collection 15
- Image 2
Format
- image/jpeg 208
- application/pdf 36
- application/xml 15
- image/tiff 1