Collection place
- North America445 objects
- The Americas445 objects
- United States443 objects
- California438 objects
- Northern California342 objects
- Northeastern California337 objects
- Modoc County, California333 objects
- Surprise Valley, Modoc County, California333 objects
- CA-Mod-204, Modoc County, California296 objects
- San Francisco Bay Area, California77 objects
- Alameda County, California33 objects
- CA-Ala-309, Emeryville, Alameda County33 objects
- Emeryville, Alameda County, California33 objects
- CA-Mod-197, Modoc County, California29 objects
- Contra Costa County, California21 objects
- CA-CCo-138, Oakley, Contra Costa County19 objects
- Oakley, Contra Costa County, California19 objects
- CA-Mad-199, Madera County, California18 objects
- Central California18 objects
- Madera County, California18 objects