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Region
- Cowlitz River >> Cowlitz County >> Washington >> United States 32
- Snake River >> Franklin County >> Washington >> United States 27
- Willamette River >> Multnomah County >> Oregon >> United States 27
- Columbia River >> Clatsop County >> Oregon >> United States 23
- Portland >> Clackamas County >> Oregon >> United States 23
- Skagit River >> Skagit County >> Washington >> United States 22
- Chehalis River >> Grays Harbor County >> Washington >> United States 21
- Nooksack River >> Whatcom County >> Washington >> United States 21
- Snohomish River >> Snohomish County >> Washington >> United States 18
- Astoria >> Clatsop County >> Oregon >> United States 11
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Type
- Text 27
- Image 4
- Collection 1
Institution
- University of Oregon 32