Collection place
- North America109 objects
- The Americas109 objects
- United States108 objects
- California90 objects
- Mendocino County, California63 objects
- Northern California63 objects
- Northwestern California63 objects
- Williams Valley, Mendocino County, California31 objects
- CA-CCo-259, Rodeo, Contra Costa County26 objects
- Contra Costa County, California26 objects
- Rodeo, Contra Costa County, California26 objects
- San Francisco Bay Area, California26 objects
- Unincorporated western Contra Costa County, California26 objects
- CA-Men-261, Mendocino County, California14 objects
- Nevada11 objects
- CA-Men-222, Mendocino County, California9 objects
- Churchill County, Nevada9 objects
- CA-Men-214, Mendocino County, California7 objects
- CA-Men-238, Mendocino County, California7 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada7 objects