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Topic
- River engineering 101
- United States. Congress--Records and correspondence 101
- Northwest, Pacific 99
- Rapids 13
- Harbors 12
- Jetties 5
- Riparian areas 4
- Canals 3
- River surveys 2
- United States--Appropriations and expenditures 2
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Region
- Columbia River >> Douglas County >> Washington >> United States 48
- Willamette River >> Multnomah County >> Oregon >> United States 41
- Oregon >> United States 23
- Washington >> United States 20
- Snake River >> Franklin County >> Washington >> United States 6
- Cathlamet Bay >> Clatsop County >> Oregon >> United States 4
- Chehalis River >> Grays Harbor County >> Washington >> United States 1
- Columbia River >> Clatsop County >> Oregon >> United States 1
- Cowlitz River >> Cowlitz County >> Washington >> United States 1
Format
- image/jpeg 101
Decade
- 1890-1899 101