- CA-CCo-141, Palm Tract, Contra Costa County130 objects
- Palm Tract, Contra Costa County, California130 objects
- Central California34 objects
- Sacramento County, California32 objects
- Northwestern California23 objects
- Buena Vista Hills, Kern County, California21 objects
- Buena Vista area, Kern County, California21 objects
- CA-Ker-39 (Tulamniu Mound 1), Kern County, California21 objects
- Kern County, California21 objects
- South Central California21 objects
- CA-CCo-148, Orwood Tract, Contra Costa County18 objects
- CA-Hum-205, Humboldt County, California18 objects
- Humboldt County, California18 objects
- Orwood Tract, Contra Costa County, California18 objects
- CA-Sac-56 (Mosher site), Sacramento County, California14 objects
- Central California coast13 objects
- Monterey County, California13 objects
- CA-Lak-90, Lake County, California12 objects
- Lake County, California12 objects
- Point Lobos, Monterey County, California12 objects