Collection place
- North America432 objects
- The Americas432 objects
- United States432 objects
- California431 objects
- Northeastern California356 objects
- Northern California356 objects
- Northern Sierras, Northern California356 objects
- Placer County, California356 objects
- Martis Valley, Placer County, California317 objects
- San Francisco Bay Area, California71 objects
- Contra Costa County, California66 objects
- CA-CCo-300, Richmond, Contra Costa County43 objects
- Marina Bay, Richmond, Contra Costa County43 objects
- Richmond, Contra Costa County, California43 objects
- CA-Pla-5 or 6, Placer County, California39 objects
- CA-CCo-259, Rodeo, Contra Costa County23 objects
- Rodeo, Contra Costa County, California23 objects
- Unincorporated western Contra Costa County, California23 objects
- Alameda County, California5 objects
- CA-Ala-309, Emeryville, Alameda County5 objects