- California2,271 objects
- Contra Costa County, California✖Remove constraint Collection place: Contra Costa County, California2,271 objects
- North America2,271 objects
- San Francisco Bay Area, California2,271 objects
- The Americas2,271 objects
- United States2,271 objects
- CA-CCo-138, Oakley, Contra Costa County2,056 objects
- Oakley, Contra Costa County, California2,056 objects
- CA-CCo-151, El Sobrante, Contra Costa County215 objects
- El Sobrante, Contra Costa County, California215 objects
- Unincorporated western Contra Costa County, California215 objects