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Topic
- Northwest, Pacific 35
- River engineering 26
- United States. Congress--Records and correspondence 23
- Photography 10
- Rivers 6
- Jetties 5
- Canals 4
- Nature 4
- Piling (Civil engineering) 3
- Salmon industry 3
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Region
- Oregon >> United States 35
- Columbia River >> Douglas County >> Washington >> United States 19
- Willamette River >> Multnomah County >> Oregon >> United States 11
- Columbia River >> Clatsop County >> Oregon >> United States 10
- Washington >> United States 8
- Memaloose Island (historical) >> Wasco County >> Oregon >> United States 2
- Pillars of Hercules >> Multnomah County >> Oregon >> United States 2
- 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
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Type
- Text 28
- Collection 5
- Image 2
Decade
- 1890-1899 35