- CA-Mrn-39 (Belvedere site), Marin County, California58 objects
- Humboldt County, California55 objects
- Northwestern California55 objects
- Hoopa Valley Reservation, Humboldt County, California50 objects
- Hoopa Valley, Humboldt County, California50 objects
- Lake County, California33 objects
- North Central California33 objects
- CA-Hum-193 (Miskut), Humboldt County, California30 objects
- CA-Lak-82, Lake County, California17 objects
- CA-Lak-36 (Borax Lake site), Lake County, California16 objects
- Central California coast16 objects
- Santa Cruz County, California15 objects
- Felton, Santa Cruz County, California13 objects
- CA-SCr-3, Santa Cruz County, California10 objects
- CA-Hum-196 (Taltsasdin or Tol-skats-a-tung), Humboldt County, California8 objects
- CA-Hum-199 (Djictanadin or Tish-tahn-ah-tung), Humboldt County, California8 objects
- CA-Nap-16, Napa Valley, Napa County6 objects
- Lower Napa Valley, Napa County, California6 objects
- Napa County, California6 objects
- Napa Valley, Napa County, California6 objects