Limit your search
Creator
- United States. War Department 26
- United States. Army. Corps of Engineers 14
- Powell, Charles Francis, 1843-1907 5
- United States. Agricultural Stabilization and Conservation Service 5
- Smith, Katherine Louise 4
- WAC Corp. 4
- United States. Army Map Service 3
- United States. Army. Office of the Chief of Engineers 3
- United States. Commodity Stabilization Service 3
- EROS Data Center 2
- more »
Topic
- Bodies of water 145
- Rivers 134
- Northwest, Pacific 129
- Photography 68
- Aerial photographs 41
- Riparian areas 38
- River engineering 31
- Mountains 28
- United States. Congress--Records and correspondence 28
- River surveys 26
- more »
Region
- Oregon >> United States 145
- Columbia River >> Clatsop County >> Oregon >> United States 69
- Washington >> United States 65
- Columbia River >> Douglas County >> Washington >> United States 63
- Willamette River >> Multnomah County >> Oregon >> United States 32
- Snake River >> Franklin County >> Washington >> United States 22
- Coos Bay >> Coos County >> Oregon >> United States 12
- California >> United States 11
- Idaho >> United States 9
- Clearwater River >> Nez Perce County >> Idaho >> United States 6
- more »
Type
- Image 101
- Text 40
- Collection 4
Format
- image/tiff 56
- image/jpeg 53
- application/pdf 32
- application/xml 4
Institution
- University of Oregon 145