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Creator
- Lorraine, Madison Johnson 224
- United States. Army. Office of the Chief of Engineers 189
- Fisk, W. L. (Walter Leslie), 1855- 75
- Harts, W. W. (William Wright), 1866-1961 75
- United States. War Department 8
- United States. Army. Corps of Engineers 7
- Rosenthal, Abraham, 1870-1929 6
- Warren, George C., 1877- 5
- Pond, James B. (James Burton), 1889-1961 4
- Oregon Touring Bureau 3
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Topic
- Rivers 274
- Bodies of water 230
- Explorers 191
- West (U.S.) 176
- Northwest, Pacific 166
- River engineering 155
- Discovery and exploration 151
- Photography 132
- Canada, Western 106
- United States--Appropriations and expenditures 76
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 526
- Willamette River >> Multnomah County >> Oregon >> United States 130
- Snake River >> British Columbia >> Canada 86
- Yamhill River >> Yamhill County >> Oregon >> United States 78
- Cascade Locks >> Hood River County >> Oregon >> United States 76
- Oregon >> United States 55
- Portland >> Clackamas County >> Oregon >> United States 51
- Cowlitz River >> Cowlitz County >> Washington >> United States 25
- Chehalis River >> Grays Harbor County >> Washington >> United States 24
- Snake River >> Franklin County >> Washington >> United States 23
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Format
- image/jpeg 526