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Creator
- Lorraine, Madison Johnson 203
- United States. Army. Office of the Chief of Engineers 26
- United States. Army. Corps of Engineers 13
- Oregon Touring Bureau 6
- United States. Agricultural Stabilization and Conservation Service 4
- WAC Corp. 4
- United States. Army Map Service 3
- United States. Commodity Stabilization Service 3
- EROS Data Center 2
- Elliott, T. C. (Thompson Coit), 1862-1943 2
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Topic
- Rivers 324
- Explorers 179
- Bodies of water 169
- Discovery and exploration 138
- Photography 109
- Northwest, Pacific 92
- Canada, Western 90
- West (U.S.) 79
- Aerial photographs 38
- Rapids 35
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 274
- Oregon >> United States 58
- Columbia River >> Douglas County >> Washington >> United States 27
- Willamette River >> Multnomah County >> Oregon >> United States 24
- Chehalis River >> Grays Harbor County >> Washington >> United States 23
- Cowlitz River >> Cowlitz County >> Washington >> United States 23
- Portland >> Clackamas County >> Oregon >> United States 22
- Snake River >> Franklin County >> Washington >> United States 22
- Washington >> United States 22
- Nooksack River >> Whatcom County >> Washington >> United States 21
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Format
- image/jpeg 324
