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Creator
- United States. Army. Office of the Chief of Engineers 9
Region
- Clackamas Rapids >> Clackamas County >> Oregon >> United States 9
- Willamette River >> Multnomah County >> Oregon >> United States 9
- Corvallis >> Benton County >> Oregon >> United States 6
- Portland >> Clackamas County >> Oregon >> United States 6
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Yamhill River >> Yamhill County >> Oregon >> United States 5
- Cowlitz River >> Cowlitz County >> Washington >> United States 4
- Astoria >> Clatsop County >> Oregon >> United States 3
- Oregon >> United States 3
- Pacific Ocean >> Earth 3
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License
- Creative Commons: Public Domain Mark 1.0 9
Type
- Text 6
- Collection 3