Location
- Oregon, Oregon, United States, (Administrative Boundary)2
- Alsea River, Oregon, United States, (Hydrographic)1
- Eastern Oregon, Oregon, United States, (Area)1
- Methow River, Washington, United States, (Hydrographic)1
- Montana, Montana, United States, (Administrative Boundary)1
- Necanicum River Estuary, Oregon, United States, (Hydrographic)1
- Wyoming, Wyoming, United States, (Administrative Boundary)1
- Yaquina River, Oregon, United States, (Hydrographic)1