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Topic
- Northwest, Pacific 25
- River engineering 25
- United States. Congress--Records and correspondence 22
- Jetties 5
- Canals 4
- Photography 3
- Piling (Civil engineering) 3
- Railroads 2
- River channels 2
- Exports 1
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Region
- Oregon >> United States 25
- Columbia River >> Douglas County >> Washington >> United States 16
- Willamette River >> Multnomah County >> Oregon >> United States 8
- Washington >> United States 6
- Columbia River >> Clatsop County >> Oregon >> United States 3
- Snake River >> Franklin County >> Washington >> United States 2
- Cathlamet Bay >> Clatsop County >> Oregon >> United States 1
- Chehalis River >> Grays Harbor County >> Washington >> United States 1
- Cowlitz River >> Cowlitz County >> Washington >> United States 1
Language
- English 25
Type
- Text 23
- Collection 2
Decade
- 1890-1899 25