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Creator
- United States. Army. Office of the Chief of Engineers 27
Topic
- Dams--Design and construction 27
- Canals--Design and construction--Costs 24
- West (U.S.) 23
- Bodies of water 22
- Northwest, Pacific 22
- Rivers 22
- Transportation 22
- Water resources development 22
- Locks (Hydraulic engineering) 4
- United States--Appropriations and expenditures 4
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 27
- Columbia River >> Clatsop County >> Oregon >> United States 25
- Portland >> Clackamas County >> Oregon >> United States 25
- Cowlitz River >> Cowlitz County >> Washington >> United States 22
- Snake River >> Franklin County >> Washington >> United States 22
- Chehalis River >> Grays Harbor County >> Washington >> United States 20
- Nooksack River >> Whatcom County >> Washington >> United States 20
- Skagit River >> Skagit County >> Washington >> United States 20
- Snohomish River >> Snohomish County >> Washington >> United States 18
- Astoria >> Clatsop County >> Oregon >> United States 12
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Rights
- No Copyright - United States 27
Type
- Text 27
Format
- image/jpeg 27