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Collection place
- California25
- North America25
- The Americas25
- United States25
- San Francisco Bay Area, California14
- North Central California10
- Northern California10
- Contra Costa County, California9
- Alameda County, California5
- CA-CCo-138, Oakley, Contra Costa County5
- Oakley, Contra Costa County, California5
- San Joaquin County, California5
- CA-SJo-42, San Joaquin County, California4
- Sacramento County, California4
- CA-Ala-309, Emeryville, Alameda County3
- Emeryville, Alameda County, California3
- Marina Bay, Richmond, Contra Costa County3
- Richmond, Contra Costa County, California3
- CA-CCo-295, Richmond, Contra Costa County2
- CA-Sac-99 (Deterding site), Carmichael (CDP), Sacramento County2