- Corvallis, Oregon, United States, (Populated Place)9
- Oregon, Oregon, United States, (Administrative Boundary)8
- H J Andrews Experimental Forest, Oregon, United States, (Vegetation)3
- Portland, Oregon, United States, (Populated Place)3
- Willamette Valley, Oregon, United States, (Hypsographic)3
- Fort Yamhill (historical), Oregon, United States, (Spot)2
- Malheur, Oregon, United States, (Administrative Boundary)2
- Nigeria, , Nigeria, (Administrative Boundary)2
- Willamette River, Oregon, United States, (Hydrographic)2
- Alaska, Alaska, United States, (Administrative Boundary)1
- Arctic Ocean, , (Hydrographic)1
- Astoria, Oregon, United States, (Populated Place)1
- Baja California, Baja California, Mexico, (Administrative Boundary)1
- Brazil, , Brazil, (Administrative Boundary)1
- Bridgeport, Town of Bridgeport, Fairfield County, Connecticut, United States1
- Burial Lake, Alaska, United States, (Hydrographic)1
- California, California, United States, (Administrative Boundary)1
- Canaan, Town of North Canaan, Litchfield County, Connecticut, United States1
- Cascade Range, Oregon, United States, (Hypsographic)1
- Champoeg, Oregon, United States, (Populated Place)1