- California2,300 objects
- North America2,300 objects
- The Americas2,300 objects
- United States2,300 objects
- North Central California1,515 objects
- Northern California1,515 objects
- Sacramento County, California1,515 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California1,379 objects
- CA-Sac-6, Sacramento County, California1,379 objects
- Lindsey Slough, Solano County, California785 objects
- San Francisco Bay Area, California785 objects
- Solano County, California785 objects
- CA-Sol-1, Solano County, California400 objects
- CA-Sol-2, Solano County, California374 objects
- CA-Sac-160 (Richards site), Sacramento County, California134 objects
- CA-Sol-2A, Solano County, California11 objects
- CA-Sac-45, Sacramento County, California2 objects