Collection place
- California2,743 objects
- North America2,743 objects
- The Americas2,743 objects
- United States2,743 objects
- San Francisco Bay Area, California2,704 objects
- Contra Costa County, California2,048 objects
- CA-CCo-138, Oakley, Contra Costa County1,301 objects
- Oakley, Contra Costa County, California1,301 objects
- Unincorporated western Contra Costa County, California746 objects
- CA-CCo-151, El Sobrante, Contra Costa County714 objects
- El Sobrante, Contra Costa County, California714 objects
- Napa County, California390 objects
- Napa Valley, Napa County, California390 objects
- Lower Napa Valley, Napa County, California337 objects
- Lindsey Slough, Solano County, California175 objects
- Solano County, California175 objects
- CA-Sol-2, Solano County, California153 objects
- CA-Nap-14 (Las Trancas site), Napa Valley, Napa County128 objects
- CA-Nap-16, Napa Valley, Napa County111 objects
- Bodega Bay region, Sonoma County, California80 objects