- Oregon, Oregon, United States, (Administrative Boundary)11
- Willamette Valley, Oregon, United States, (Hypsographic)6
- Corvallis, Oregon, United States, (Populated Place)5
- Willamette River, Oregon, United States, (Hydrographic)4
- H J Andrews Experimental Forest, Oregon, United States, (Vegetation)3
- Wyoming, Wyoming, United States, (Administrative Boundary)3
- Carbon, Wyoming, United States, (Administrative Boundary)2
- Eastern Oregon, Oregon, 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
- Oregon Coast, Oregon, United States, (Area)2
- Oregon, United States2
- Puget Sound, Kitsap County, Washington, United States2
- Willamette Valley, Multnomah County, Oregon, United States2
- Yaquina Bay, Oregon, United States, (Hydrographic)2
- Alsea Bay, Oregon, United States, (Hydrographic)1
- Ashland, Oregon, United States, (Populated Place)1