Collection place
- North America142 objects
- The Americas142 objects
- United States142 objects
- California138 objects
- Northern California91 objects
- North Central California89 objects
- San Joaquin County, California76 objects
- CA-SJo-142, San Joaquin County, California68 objects
- San Francisco Bay Area, California33 objects
- Contra Costa County, California31 objects
- CA-CCo-138, Oakley, Contra Costa County20 objects
- Oakley, Contra Costa County, California20 objects
- Sacramento County, California13 objects
- CA-CCo-250, Concord, Contra Costa County11 objects
- Concord, Contra Costa County, California11 objects
- CA-SJo-68, San Joaquin County, California8 objects
- CA-Sac-107 (Windmiller Mound), Sacramento County, California8 objects
- Channel Islands, Ventura County, California6 objects
- San Nicolas Island, Southern Channel Islands, Ventura County6 objects
- Southern California6 objects