- California16 objects
- Contra Costa County, California16 objects
- North America16 objects
- San Francisco Bay Area, California16 objects
- The Americas✖Remove constraint Collection place: The Americas16 objects
- United States16 objects
- CA-CCo-14, El Sobrante, Contra Costa County10 objects
- El Sobrante, Contra Costa County, California10 objects
- Unincorporated western Contra Costa County, California10 objects
- Bethel Island, Contra Costa County, California6 objects
- CA-CCo-20, Bethel Island, Contra Costa County6 objects
- San Joaquin River Delta, Contra Costa County, California6 objects