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Creator
- United States. War Department 17
- United States. War Department. Office of the Chief of Engineers 4
- Michler, N. (Nathaniel), 1827-1881 2
- Wilson, John M. (John Moulder), 1837-1919 2
Region
- Oregon >> United States 17
- Washington >> United States 16
- Columbia River >> Douglas County >> Washington >> United States 13
- Willamette River >> Multnomah County >> Oregon >> United States 13
- Snake River >> Franklin County >> Washington >> United States 7
- California >> United States 6
- San Francisco Bay >> San Mateo County >> California >> United States 3
- Umpqua River >> Douglas County >> Oregon >> United States 3
- San Joaquin River >> Contra Costa County >> California >> United States 2
- Clearwater River >> Nez Perce County >> Idaho >> United States 1
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Type
- Text 16
- Collection 1
Decade
- 1870-1879 17