Collection place
- North America351 objects
- The Americas351 objects
- United StatesRemove constraint Collection place: United States351 objects
- California102 objects
- Northern California78 objects
- Northwestern United States62 objects
- Northwestern California58 objects
- Alaska47 objects
- Southwestern United States41 objects
- Nevada39 objects
- Churchill County, Nevada34 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada27 objects
- Arizona13 objects
- North Central California12 objects
- Northeastern United States12 objects
- Northern central United States12 objects
- Utah12 objects
- Humboldt County, California11 objects
- Mendocino County, California10 objects
- Nebraska9 objects