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Creator
- Oregon. State Highway Division 10
- Oregon State Highway Commission 6
- Oregon Transportation Commission 4
- United States. Agricultural Stabilization and Conservation Service 2
- Doerksen, Harvey R. 1
- Geological Survey (U.S.) 1
- United States. Army. Corps of Engineers 1
- United States. Army. Corps of Engineers. North Pacific Division 1
- United States. Department of the Interior 1
Region
- Oregon >> United States 17
- Columbia River >> Douglas County >> Washington >> United States 5
- Washington >> United States 5
- Snake River >> Franklin County >> Washington >> United States 3
- Columbia River >> Clatsop County >> Oregon >> United States 2
- Idaho >> United States 2
- Montana >> United States 2
- Willamette River >> Multnomah County >> Oregon >> United States 2
- Buster Creek >> Clatsop County >> Oregon >> United States 1
- Flathead River >> Sanders County >> Montana >> United States 1
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Rights
- No Copyright - United States 17
Decade
- 1970-1979 17