Collection place
- California10 objects
- North America10 objects
- The Americas10 objects
- United States10 objects
- San Francisco Bay Area, California9 objects
- Contra Costa County, California5 objects
- CA-CCo-151, El Sobrante, Contra Costa County3 objects
- CA-SMa-23, San Bruno, San Mateo County3 objects
- El Sobrante, Contra Costa County, California3 objects
- San Bruno, San Mateo County, California3 objects
- San Mateo County, California3 objects
- Unincorporated western Contra Costa County, California3 objects
- Richmond, Contra Costa County, California2 objects
- Berryessa Valley, Napa County, California1 objects
- Buttonwillow area, Kern County, California1 objects
- CA-CCo-284, Richmond, Contra Costa County1 objects
- CA-CCo-295, Richmond, Contra Costa County1 objects
- CA-Ker-35, Kern County, California1 objects
- CA-Nap-93, Berryessa Valley, Napa County1 objects
- Central California1 objects