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Creator
- United States. Army. Office of the Chief of Engineers 34
Topic
- Dams--Design and construction 34
- Canals--Design and construction--Costs 29
- West (U.S.) 29
- Bodies of water 26
- Northwest, Pacific 26
- Rivers 26
- Transportation 26
- Water resources development 26
- Locks (Hydraulic engineering) 6
- River engineering 5
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 30
- Portland >> Clackamas County >> Oregon >> United States 28
- Willamette River >> Multnomah County >> Oregon >> United States 28
- Cowlitz River >> Cowlitz County >> Washington >> United States 24
- Chehalis River >> Grays Harbor County >> Washington >> United States 23
- Snake River >> Franklin County >> Washington >> United States 23
- Nooksack River >> Whatcom County >> Washington >> United States 22
- Skagit River >> Skagit County >> Washington >> United States 22
- Snohomish River >> Snohomish County >> Washington >> United States 18
- Astoria >> Clatsop County >> Oregon >> United States 13
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License
- Creative Commons: Public Domain Mark 1.0 34
Type
- Text 33
- Collection 1
Institution
- University of Oregon 34