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Creator
- United States. Army. Office of the Chief of Engineers 27
Region
- Portland >> Clackamas County >> Oregon >> United States 27
- Willamette River >> Multnomah County >> Oregon >> United States 27
- Columbia River >> Clatsop County >> Oregon >> United States 22
- Yamhill River >> Yamhill County >> Oregon >> United States 8
- Vancouver >> Clark County >> Washington >> United States 7
- Clackamas Rapids >> Clackamas County >> Oregon >> United States 6
- Pacific Ocean >> Earth 6
- Cowlitz River >> Cowlitz County >> Washington >> United States 5
- Eugene >> Lane County >> Oregon >> United States 5
- Oregon >> United States 5
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License
- Creative Commons: Public Domain Mark 1.0 27
Type
- Text 23
- Collection 4