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Region
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 4
- Portland >> Washington County >> Oregon >> United States 4
- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 3
- Lost River >> Klamath County >> Oregon >> United States 2
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 2
- Burns >> Harney County >> Oregon >> United States 1
- Silvies River >> Harney County >> Oregon >> United States 1
Institution
- Oregon State University 4