- California✖Remove constraint Collection place: California38 objects
- North America38 objects
- The Americas38 objects
- United States38 objects
- San Francisco Bay Area, California22 objects
- CA-Nap-1 (Goddard Mound), Napa Valley, Napa County21 objects
- Middle Napa Valley, Napa County, California21 objects
- Napa County, California21 objects
- Napa Valley, Napa County, California21 objects
- Oakville area, Napa Valley, Napa County21 objects
- Northern California11 objects
- North Central California6 objects
- Northwestern California5 objects
- Humboldt County, California3 objects
- Humboldt Bay, Humboldt County, California2 objects
- Sacramento County, California2 objects
- CA-CCo-138, Oakley, Contra Costa County1 objects
- CA-Hum-67 (Tolowot), Humboldt County, California1 objects
- CA-Sac-107 (Windmiller Mound), Sacramento County, California1 objects
- CA-Sac-16 (Bennet Mound), Sacramento County, California1 objects