Collection place
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California196 objects
- CA-Sac-6, Sacramento County, California192 objects
- Nevada182 objects
- Lassen County, California171 objects
- Ventura County, California170 objects
- Central California163 objects
- Napa Valley, Napa County, California161 objects
- Drakes Bay, Point Reyes, Marin County156 objects
- CA-SNI-NL-4, San Nicolas Island, Southern Channel Islands153 objects
- Channel Islands, Ventura County, California153 objects
- San Nicolas Island, Southern Channel Islands, Ventura County153 objects
- Colusa County, California152 objects
- Berkeley, Alameda County, California150 objects
- CA-Ala-307, Berkeley, Alameda County149 objects
- West Berkeley, Berkeley, Alameda County149 objects
- Southwestern United States137 objects
- San Joaquin County, California135 objects
- CA-Las-7, Karlo area, Lassen County131 objects
- Karlo area, Lassen County, California131 objects
- Sacramento, Sacramento County, California131 objects