Collection place
- California79 objects
- North America79 objects
- The Americas79 objects
- United States79 objects
- Contra Costa County, California46 objects
- San Francisco Bay Area, California46 objects
- CA-CCo-259, Rodeo, Contra Costa County33 objects
- Rodeo, Contra Costa County, California33 objects
- Unincorporated western Contra Costa County, California33 objects
- Central California30 objects
- South Central California30 objects
- Fresno County, California15 objects
- CA-Fre-48 (Tranquillity site), Fresno County, California9 objects
- Madera County, California9 objects
- CA-CCo-139 (Simone Mound), Oakley, Contra Costa County7 objects
- Oakley, Contra Costa County, California7 objects
- CA-Mad-8, Madera County, California6 objects
- CA-CCo-141, Palm Tract, Contra Costa County5 objects
- Palm Tract, Contra Costa County, California5 objects
- Unincorporated eastern Contra Costa County, California5 objects