Limit your search
Topic
- River engineering 10
- United States--Appropriations and expenditures 10
- River surveys 9
- United States. Congress--Records and correspondence 8
- Military maps 1
- Military topography 1
Region
- Portland >> Clackamas County >> Oregon >> United States 8
- San Francisco >> San Francisco County >> California >> United States 7
- Willamette River >> Multnomah County >> Oregon >> United States 7
- Columbia River >> Clatsop County >> Oregon >> United States 6
- Crescent Harbor >> Del Norte County >> California >> United States 4
- Pacific Ocean >> Earth 3
- Astoria >> Clatsop County >> Oregon >> United States 2
- Penobscot River >> Hancock County >> Maine >> United States 1
- Ruby City >> Owyhee County >> Idaho >> United States 1
Format
- image/jpeg 10
Institution
- University of Oregon 10
Decade
- 1860-1869 10