- CA-Sol-NL-2, Vallejo, Solano County8 objects
- El Dorado County, California8 objects
- Vallejo area, Solano County, California8 objects
- Brooklyn Shellmound, Alameda County, California6 objects
- Brooklyn, Alameda County, California6 objects
- Indian Gulch, El Dorado County, California6 objects
- Near Brooklyn, Alameda County, California6 objects
- Northern Channel Islands, Santa Barbara County, California6 objects
- Northwestern United States6 objects
- Oakland, Alameda County, California6 objects
- Southwestern United States6 objects
- Oregon5 objects
- Central California4 objects
- Marin County, California4 objects
- Napa County, California4 objects
- Northwestern California4 objects
- San Francisco County, California4 objects
- Santa Rosa Island, Santa Barbara Channel Islands, Southern California4 objects
- Arizona3 objects
- Contra Costa County, California3 objects