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Creator
- United States. War Department 6
Topic
- River surveys 6
- United States--Appropriations and expenditures 6
- United States. Congress--Records and correspondence 6
- River engineering 5
- Transportation 2
- Military maps 1
- Military topography 1
Region
- Columbia River >> Clatsop County >> Oregon >> United States 6
- Portland >> Clackamas County >> Oregon >> United States 6
- Willamette River >> Multnomah County >> Oregon >> United States 4
- Crescent Harbor >> Del Norte County >> California >> United States 3
- San Francisco >> San Francisco County >> California >> United States 3
- Astoria >> Clatsop County >> Oregon >> United States 2
- Lewiston >> Nez Perce County >> Idaho >> United States 2
- Pacific Ocean >> Earth 2
- Priest Rapids >> Kittitas County >> Washington >> United States 2
- Snake River >> British Columbia >> Canada 2
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Type
- Text 5
- Collection 1