Collection place
- California44 objects
- North America44 objects
- The Americas44 objects
- United States44 objects
- San Francisco Bay Area, California43 objects
- Contra Costa County, California37 objects
- CA-CCo-138, Oakley, Contra Costa County24 objects
- Oakley, Contra Costa County, California24 objects
- CA-CCo-151, El Sobrante, Contra Costa County13 objects
- El Sobrante, Contra Costa County, California13 objects
- Unincorporated western Contra Costa County, California13 objects
- Napa County, California6 objects
- Napa Valley, Napa County, California6 objects
- Lower Napa Valley, Napa County, California5 objects
- CA-Nap-14 (Las Trancas site), Napa Valley, Napa County4 objects
- CA-Nap-16, Napa Valley, Napa County1 objects
- CA-Nap-32, Napa Valley, Napa County1 objects
- CA-SJo-105, Stockton, San Joaquin County1 objects
- Middle Napa Valley, Napa County, California1 objects
- North Central California1 objects