- Oregon, Oregon, United States, (Administrative Boundary)5
- Eastern Oregon, Oregon, United States, (Area)3
- Alsea River, Oregon, United States, (Hydrographic)2
- Puget Sound, Kitsap County, Washington, United States2
- Willamette Valley, Multnomah County, Oregon, United States2
- Cape Arago, Coos County, Oregon, United States1
- Chetco River Estuary, Oregon, United States, (Hydrographic)1
- Coos Bay Estuary, Oregon, United States, (Hydrographic)1
- Coos Bay, Oregon, United States, (Hydrographic)1
- Coquille River Estuary, Oregon, United States, (Hydrographic)1
- Ebey's Landing National Historical Reserve, Island County, Washington, United States1
- Great Basin, , United States, (Hypsographic)1
- Idaho, Idaho, United States, (Administrative Boundary)1
- Necanicum River Estuary, Oregon, United States, (Hydrographic)1
- Necanicum River, Oregon, United States, (Hydrographic)1
- Nestucca River Estuary, Oregon, United States, (Hydrographic)1
- Netarts Bay Estuary, Oregon, United States, (Hydrographic)1
- Netarts Bay, Oregon, United States, (Hydrographic)1
- North Pacific Ocean1
- Oregon Coast, Oregon, United States1