- California48 objects
- North America48 objects
- North Central California48 objects
- Northern California48 objects
- The Americas48 objects
- United States48 objects
- CA-SJo-43, San Joaquin County, California32 objects
- San Joaquin County, California32 objects
- Sacramento County, California16 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California14 objects
- CA-Sac-6, Sacramento County, California14 objects
- CA-Sac-64 (Peter Houth Mound), Sacramento County, California2 objects