Collection place
- California422 objects
- North America422 objects
- The Americas422 objects
- United States422 objects
- San Francisco Bay Area, California320 objects
- Marin County, California198 objects
- CA-Mrn-168, Marin County, California195 objects
- Contra Costa County, California106 objects
- Northern California93 objects
- CA-CCo-151, El Sobrante, Contra Costa County86 objects
- El Sobrante, Contra Costa County, California86 objects
- Unincorporated western Contra Costa County, California86 objects
- Northeastern California79 objects
- Calaveras County, California75 objects
- Northern Sierras, Northern California75 objects
- CA-Cal-99 (Winslow Cave), Calaveras County, California73 objects
- CA-CCo-241, Concord, Contra Costa County20 objects
- Concord, Contra Costa County, California20 objects
- CA-Men-500, Mendocino County, California12 objects
- Mendocino County, California12 objects