Collection place
- North America3,676 objects
- The Americas3,676 objects
- United States3,676 objects
- California3,658 objects
- Northern California2,672 objects
- Northeastern California2,671 objects
- Northern Sierras, Northern California2,671 objects
- Placer County, California2,669 objects
- Martis Valley, Placer County, California2,033 objects
- San Francisco Bay Area, California933 objects
- Contra Costa County, California741 objects
- CA-Pla-5 or 6, Placer County, California636 objects
- Richmond, Contra Costa County, California520 objects
- Marina Bay, Richmond, Contra Costa County407 objects
- CA-CCo-300, Richmond, Contra Costa County386 objects
- CA-CCo-259, Rodeo, Contra Costa County198 objects
- Rodeo, Contra Costa County, California198 objects
- Unincorporated western Contra Costa County, California198 objects
- CA-Son-371, Sonoma County, California126 objects
- Petaluma Valley, Sonoma County, California126 objects