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Region
- Willamette River >> Multnomah County >> Oregon >> United States 13
- Portland >> Clackamas County >> Oregon >> United States 11
- Columbia River >> Clatsop County >> Oregon >> United States 9
- Yamhill River >> Yamhill County >> Oregon >> United States 4
- Oregon City >> Clackamas County >> Oregon >> United States 3
- Vancouver >> Clark County >> Washington >> United States 3
- Pacific Ocean >> Earth 2
- British Columbia >> Canada 1
- Clackamas Rapids >> Clackamas County >> Oregon >> United States 1
- Clatskanie River >> Columbia County >> Oregon >> United States 1
- Corvallis >> Benton County >> Oregon >> United States 1
- Cowlitz River >> Cowlitz County >> Washington >> United States 1
- Eugene >> Lane County >> Oregon >> United States 1
- Long Tom River >> Benton County >> Oregon >> United States 1
- Oswego >> City of Oswego >> Oswego >> New York >> United States 1
- Riparia >> Whitman County >> Washington >> United States 1
- Snake River >> British Columbia >> Canada 1
- The Dalles (historical) >> Klickitat County >> Washington >> United States 1
