Collection place
- North America38 objects
- The Americas38 objects
- United States38 objects
- California36 objects
- Northern California23 objects
- North Central California16 objects
- San Francisco Bay Area, California13 objects
- San Joaquin County, California13 objects
- CA-SJo-68, San Joaquin County, California12 objects
- Napa County, California8 objects
- Napa Valley, Napa County, California8 objects
- Modoc County, California7 objects
- Northeastern California7 objects
- Surprise Valley, Modoc County, California7 objects
- CA-Nap-32, Napa Valley, Napa County4 objects
- CA-Nap-39 (Tulukai site), Napa Valley, Napa County4 objects
- Lower Napa Valley, Napa County, California4 objects
- Middle Napa Valley, Napa County, California4 objects
- Rutherford area, Napa Valley, Napa County4 objects
- CA-CCo-138, Oakley, Contra Costa County3 objects