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Creator
- United States. Army. Office of the Chief of Engineers 3
Topic
- Railroad engineering 3
- Canals--Design and construction--Costs 2
- River engineering 2
- United States--Appropriations and expenditures 2
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- Bodies of water 1
- Northwest, Pacific 1
Region
- Columbia River >> Clatsop County >> Oregon >> United States 3
- Oregon >> United States 3
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- Celilo Falls (historical) >> Wasco County >> Oregon >> United States 2
- Pacific Ocean >> Earth 2
- Celilo Canal >> Wasco County >> Oregon >> United States 1
- Deschutes River >> Sherman County >> Oregon >> United States 1
- Fivemile Rapids (historical) >> Wasco County >> Oregon >> United States 1
- Lewiston >> Nez Perce County >> Idaho >> United States 1
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Rights
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Institution
- University of Oregon 3