- North America✖Remove constraint Collection place: North America248 objects
- The Americas248 objects
- United States248 objects
- Nevada225 objects
- NV-Pe-40, Pershing County, Nevada180 objects
- Pershing County, Nevada180 objects
- Churchill County, Nevada42 objects
- Grimes Point Caves, Churchill County, Nevada42 objects
- NV-Ch-3, Churchill County, Nevada42 objects
- CA-Mnt-486, Partington Ridge, Monterey County23 objects
- California23 objects
- Central California23 objects
- Central California coast23 objects
- Monterey County, California23 objects
- Partington Ridge, Monterey County, California23 objects
- Humboldt County, Nevada2 objects
- NV-Hu-300, Humboldt County, Nevada2 objects
- Lyon County, Nevada1 objects
- NV-Ly-1, Lyon County, Nevada1 objects