- Oregon, Oregon, United States, (Administrative Boundary)17
- Corvallis, Oregon, United States, (Populated Place)11
- Willamette Valley, Oregon, United States, (Hypsographic)8
- Willamette River, Oregon, United States, (Hydrographic)4
- Willamette Valley, Multnomah County, Oregon, United States4
- H J Andrews Experimental Forest, Oregon, United States, (Vegetation)3
- Portland, Oregon, United States, (Populated Place)3
- Wyoming, Wyoming, United States, (Administrative Boundary)3
- Alsea River, Oregon, United States, (Hydrographic)2
- Baja California, Baja California, Mexico, (Administrative Boundary)2
- Carbon, Wyoming, United States, (Administrative Boundary)2
- Eastern Oregon, Oregon, United States, (Area)2
- Fort Yamhill (historical), Oregon, United States, (Spot)2
- Ghana, , Ghana, (Administrative Boundary)2
- Glacier Bay National Park and Preserve, Alaska, United States, (Area)2
- Great Basin, , United States, (Hypsographic)2
- Malheur, Oregon, United States, (Administrative Boundary)2
- Nepal, , Nepal, (Administrative Boundary)2
- New Zealand, , New Zealand, (Administrative Boundary)2
- Nigeria, , Nigeria, (Administrative Boundary)2