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Creator
- Oregon Journal (Firm) 13
- Portland Chamber of Commerce (Or.) 13
- Oregonian (Firm) 9
- Altoona Tribune 1
- City Club of Portland (Portland, Or.) 1
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Region
- Willamette River >> Multnomah County >> Oregon >> United States 3
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- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 2
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- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 1
Repository
- Oregon State University. Libraries 13