Collection place
- California8 objects
- North America8 objects
- The Americas8 objects
- United States8 objects
- CA-CCo-138, Oakley, Contra Costa County5 objects
- Contra Costa County, California5 objects
- Oakley, Contra Costa County, California5 objects
- San Francisco Bay Area, California5 objects
- North Central California3 objects
- Northern California3 objects
- San Joaquin County, California3 objects
- CA-SJo-68, San Joaquin County, California2 objects
- CA-SJo-142, San Joaquin County, California1 objects