Collection place
- North America39 objects
- The Americas39 objects
- United States38 objects
- California35 objects
- San Francisco Bay Area, California25 objects
- CA-CCo-138, Oakley, Contra Costa County18 objects
- Contra Costa County, California18 objects
- Oakley, Contra Costa County, California18 objects
- Northern California9 objects
- Northeastern California7 objects
- CA-Sis-262 (Foster site), Bogus Creek, Siskiyou County4 objects
- Napa County, California4 objects
- Siskiyou County, California4 objects
- Berryessa Valley, Napa County, California3 objects
- CA-Cal-83, Calaveras County, California3 objects
- Calaveras County, California3 objects
- Northern Sierras, Northern California3 objects
- Northwestern United States3 objects
- San Francisco County, California3 objects
- San Francisco Waterfront, San Francisco, San Francisco County3 objects