- Willamette Valley, Multnomah County, Oregon, United States3
- Oregon, United States2
- Puget Sound, Kitsap County, Washington, United States2
- Carbon County, Wyoming, United States1
- China1
- Ebey's Landing National Historical Reserve, Island County, Washington, United States1
- Great Basin, United States1
- H J Andrews Experimental Forest Headquarters, Lane County, Oregon, United States1
- Mount Rainier National Park (MRNP), Pierce County, Washington, United States1
- Necanicum River Estuary, Oregon, United States1
- North Pacific Ocean1
- Pacific Northwest, United States1
- San Juan Island National Historical Park, San Juan County, Washington, United States1
- Washington, United States1
- Whidbey Island, Island County, Washington, United States1