- North America12 objects
- The Americas12 objects
- United States✖Remove constraint Collection place: United States12 objects
- Nevada10 objects
- Churchill County, Nevada6 objects
- Humboldt Lake region, Churchill County, Nevada5 objects
- NV-Ch-15, Churchill County, Nevada5 objects
- NV-Pe-67, Pershing County, Nevada4 objects
- Pershing County, Nevada4 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California2 objects
- CA-Sac-6, Sacramento County, California2 objects
- California2 objects
- North Central California2 objects
- Northern California2 objects
- Sacramento County, California2 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada1 objects