Collection place
- California5 objects
- North America5 objects
- The Americas5 objects
- United States5 objects
- San Francisco Bay Area, California3 objects
- Contra Costa County, California2 objects
- North Central California2 objects
- Northern California2 objects
- Bethel Island, Contra Costa County, California1 objects
- CA-CCo-151, El Sobrante, Contra Costa County1 objects
- CA-CCo-20, Bethel Island, Contra Costa County1 objects
- CA-Mrn-168, Marin County, California1 objects
- CA-Sac-107 (Windmiller Mound), Sacramento County, California1 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California1 objects
- El Sobrante, Contra Costa County, California1 objects
- Marin County, California1 objects
- Sacramento County, California1 objects
- San Joaquin River Delta, Contra Costa County, California1 objects
- Unincorporated western Contra Costa County, California1 objects
- Yolo County, California1 objects