- California21 objects
- North America21 objects
- Northern California21 objects
- The Americas21 objects
- United States21 objects
- North Central California20 objects
- CA-Sut-11 (Verona Mound), Sutter County, California16 objects
- Sutter County, California16 objects
- Sacramento County, California4 objects
- CA-Sac-16 (Bennet Mound), Sacramento County, California2 objects
- CA-Las-3, Lassen County, California1 objects
- CA-Sac-21 (Hollister Mound), Sacramento County, California1 objects
- CA-Sac-28 (Strawberry Mound), Sacramento, Sacramento County1 objects
- Honey Lake Valley, Lassen County, California1 objects
- Lassen County, California1 objects
- Northeastern California1 objects
- Sacramento, Sacramento County, California1 objects