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Region
- Willamette River >> Multnomah County >> Oregon >> United States 306
- Linn County >> Oregon >> United States 92
- Lane County >> Oregon >> United States 80
- Marion County >> Oregon >> United States 68
- Clackamas County >> Oregon >> United States 52
- Santiam River >> Marion County >> Oregon >> United States 50
- Columbia River >> Clatsop County >> Oregon >> United States 49
- Multnomah County >> Oregon >> United States 41
- Deschutes River >> Sherman County >> Oregon >> United States 35
- Clackamas River >> Clackamas County >> Oregon >> United States 29
- McKenzie River >> Lane County >> Oregon >> United States 29
- Sandy River >> Multnomah County >> Oregon >> United States 29
- Yamhill County >> Oregon >> United States 22
- Yamhill River >> Yamhill County >> Oregon >> United States 22
- Grande Ronde River >> Asotin County >> Washington >> United States 21
- Calapooia River >> Linn County >> Oregon >> United States 17
- Tualatin River >> Clackamas County >> Oregon >> United States 16
- Bonneville Dam >> Multnomah County >> Oregon >> United States 15
- Skamania County >> Washington >> United States 15
- South Yamhill River >> Yamhill County >> Oregon >> United States 13