- Corvallis, Oregon, United States, (Populated Place)3
- Oregon, Oregon, United States, (Administrative Boundary)2
- Willamette Valley, Oregon, United States, (Hypsographic)2
- Baker, Oregon, United States, (Administrative Boundary)1
- Brazil, , Brazil, (Administrative Boundary)1
- China1
- Clackamas, Oregon, United States, (Administrative Boundary)1
- Ghana, , Ghana, (Administrative Boundary)1
- Great Basin, , United States, (Hypsographic)1
- Ho Chi Minh City, Ho Chi Minh, Vietnam, (Populated Place)1
- Hood River, Oregon, United States, (Administrative Boundary)1
- Malheur, Oregon, United States, (Administrative Boundary)1
- Morrow, Oregon, United States, (Administrative Boundary)1
- Necanicum River, Oregon, United States, (Hydrographic)1
- Nepal, , Nepal, (Administrative Boundary)1
- Pacific Northwest, , United States, (Area)1
- Philomath, Oregon, United States, (Populated Place)1
- South Fork John Day River, Oregon, United States, (Hydrographic)1