- North America92 objects
- The Americas92 objects
- United States92 objects
- California75 objects
- Eastern Oregon16 objects
- Northwestern United States16 objects
- Oregon16 objects
- Umatilla County, Oregon16 objects
- Umatilla Reservation, Umatilla County, Eastern Oregon16 objects
- San Francisco Bay Area, California2 objects
- Santa Rosa Plain, Sonoma County, California2 objects
- Santa Rosa, Sonoma County, California2 objects
- Sonoma County, California2 objects
- Adams County, Ohio1 objects
- Great Serpent Mound, Adams County, Ohio1 objects
- Ohio1 objects
- Piner Creek, Sonoma County, California1 objects
- Southern Great Lakes states, United States1 objects