- North America9 objects
- The Americas9 objects
- United States9 objects
- California8 objects
- Southern California8 objects
- Imperial County, California5 objects
- Outer Picacho Trail, Imperial County, California4 objects
- Cronise Lakes area, San Bernardino County, California2 objects
- East Cronise Lake area, San Bernardino County, California2 objects
- East Cronise Lake, San Bernardino County, California2 objects
- Mojave Desert, San Bernardino County, California2 objects
- San Bernardino County, California2 objects
- Arizona1 objects
- Bouse site, La Paz County, Arizona1 objects
- La Paz County, Arizona1 objects
- Riverside County, California1 objects
- Salton Sea region, Imperial County, California1 objects
- Salton Sea, Riverside County, California1 objects
- Southwestern United States1 objects