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Creator
- Gillespie, G. L. 2
- United States. War Department 2
Contributor
- United States. Army. Corps of Engineers 2
Topic
- Bodies of water 2
- Canals 2
- Northwest, Pacific 2
- Rapids 2
- River channels 2
- River engineering 2
- River surveys 2
- Rivers 2
- United States--Armed Forces--Organization--Charts, diagrams, etc 2
- United States. Congress--Records and correspondence 2
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Region
- Columbia River >> Douglas County >> Washington >> United States 2
- Oregon >> United States 2
- Snake River >> Franklin County >> Washington >> United States 2
- Washington >> United States 2
- Willamette River >> Multnomah County >> Oregon >> United States 2
- Yamhill River >> Yamhill County >> Oregon >> United States 1