- California18 objects
- North America18 objects
- Northern California18 objects
- The Americas18 objects
- United States18 objects
- North Central California16 objects
- CA-Sac-21 (Hollister Mound), Sacramento County, California15 objects
- Sacramento County, California15 objects
- CA-Las-7, Karlo area, Lassen County2 objects
- Karlo area, Lassen County, California2 objects
- Lassen County, California2 objects
- Northeastern California2 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California1 objects
- Yolo County, California1 objects