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Creator
- United States. War Department 3
- Wilson, John M. (John Moulder), 1837-1919 3
Topic
- Bodies of water 3
- Canals 3
- Northwest, Pacific 3
- Rapids 3
- River channels 3
- River engineering 3
- River surveys 3
- Rivers 3
- United States--Armed Forces--Organization--Charts, diagrams, etc 3
- United States. Congress--Records and correspondence 3
Region
- Columbia River >> Douglas County >> Washington >> United States 3
- Willamette River >> Multnomah County >> Oregon >> United States 3
- Oregon >> United States 2
- Snake River >> Franklin County >> Washington >> United States 2
- Washington >> United States 2
- Coos Bay >> Coos County >> Oregon >> United States 1