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Creator
- Ballou, William Hosea, 1857-1937 2
Topic
- Engineering--Estimates 2
- Jetties 2
- Northwest, Pacific 2
- River channels 2
- River engineering 2
- Rivers 2
Region
- Columbia River >> Clatsop County >> Oregon >> United States 2
- Oregon >> United States 2
Type
- Collection 1
- Text 1