Collection place
- Sonoma County, California126 objects
- Alameda County, California66 objects
- CA-Ala-309, Emeryville, Alameda County64 objects
- Emeryville, Alameda County, California64 objects
- Central California54 objects
- Central California coast54 objects
- CA-SCr-37, Santa Cruz County, California52 objects
- Laguna de las Trancas, Santa Cruz County, California52 objects
- Santa Cruz County, California52 objects
- CA-CCo-301, Richmond, Contra Costa County51 objects
- Point Isabel, Richmond, Contra Costa County51 objects
- Richmond Annex, Richmond, Contra Costa County51 objects
- CA-CCo-241, Concord, Contra Costa County23 objects
- Concord, Contra Costa County, California23 objects
- Nevada18 objects
- Washoe County, Nevada14 objects
- Washoe Lake Shores, Washoe County, Nevada14 objects
- CA-CCo-297, Richmond, Contra Costa County13 objects
- CA-Pla-6, Placer County, California10 objects
- CA-CCo-298, Richmond, Contra Costa County9 objects