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Topic
- River surveys 66
- United States--Appropriations and expenditures 66
- River engineering 60
- United States. Congress--Records and correspondence 15
- Locks (Hydraulic engineering) 6
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- Dams--Design and construction 4
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 46
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License
- Creative Commons: Public Domain Mark 1.0 66
Type
- Text 63
- Collection 3
Collection
- Western Waters Digital Library 66