Collection place
- Sacramento County, California56 objects
- CA-SJo-68, San Joaquin County, California46 objects
- Napa Valley, Napa County, California41 objects
- Middle Napa Valley, Napa County, California36 objects
- Sonoma County, California35 objects
- Sonoma coast, Sonoma County, California33 objects
- Bodega Bay region, Sonoma County, California31 objects
- Bodega Harbor, Sonoma County, California31 objects
- CA-Son-299, Bodega Harbor, Sonoma County31 objects
- Marin County, California31 objects
- Southern Sonoma coast, Sonoma County, California31 objects
- CA-Nap-1 (Goddard Mound), Napa Valley, Napa County27 objects
- Oakville area, Napa Valley, Napa County27 objects
- CA-SJo-43, San Joaquin County, California25 objects
- CA-Yub-5 (Arboga site), Yuba County, California24 objects
- Yuba County, California24 objects
- near Arboga, Yuba County, California24 objects
- Central California coast22 objects
- Northeastern California22 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California19 objects