Collection place
- North America26 objects
- The Americas26 objects
- United States26 objects
- California24 objects
- North Central California24 objects
- Northern California24 objects
- CA-Lak-30, Lake County, California18 objects
- Lake County, California18 objects
- CA-Col-12, Colusa County, California6 objects
- Colusa County, California6 objects
- Churchill County, Nevada2 objects
- Humboldt Lake region, Churchill County, Nevada2 objects
- Humboldt Lake, Churchill County, Nevada2 objects
- Nevada2 objects