Collection place
- Sonoma County, California17 objects
- Solano County, California14 objects
- Oakville area, Napa Valley, Napa County13 objects
- Berkeley, Alameda County, California12 objects
- CA-Nap-1 (Goddard Mound), Napa Valley, Napa County12 objects
- Sonoma coast, Sonoma County, California12 objects
- Bodega Bay region, Sonoma County, California11 objects
- Bodega Harbor, Sonoma County, California11 objects
- CA-Ala-307, Berkeley, Alameda County11 objects
- CA-Son-299, Bodega Harbor, Sonoma County11 objects
- Southern Sonoma coast, Sonoma County, California11 objects
- West Berkeley, Berkeley, Alameda County11 objects
- Point Reyes, Marin County, California10 objects
- Unincorporated western Contra Costa County, California9 objects
- CA-Nap-32, Napa Valley, Napa County8 objects
- El Sobrante, Contra Costa County, California8 objects
- Rutherford area, Napa Valley, Napa County8 objects
- San Mateo County, California7 objects
- CA-CCo-151, El Sobrante, Contra Costa County6 objects
- CA-CCo-295, Richmond, Contra Costa County6 objects