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Creator
- United States. Army. Office of the Chief of Engineers 4
Topic
- Bodies of water 4
- River engineering 4
- United States--Appropriations and expenditures 3
- West (U.S.) 2
- Northwest, Pacific 1
- Railroad engineering 1
Region
- Washington >> United States 4
- Columbia River >> Clatsop County >> Oregon >> United States 3
- Oregon >> United States 3
- British Columbia >> Canada 1
- Cabinet Rapids (historical) >> Chelan County >> Washington >> United States 1
- Canoe Encampment Rapids (historical) >> Morrow County >> Oregon >> United States 1
- Celilo Falls (historical) >> Wasco County >> Oregon >> United States 1
- Chehalis River >> Grays Harbor County >> Washington >> United States 1
- Devils Bend >> Lincoln County >> Oregon >> United States 1
- Homly Channel >> Benton County >> Washington >> United States 1
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