- North America48 objects
- The Americas48 objects
- United States48 objects
- California36 objects
- CA-SBa-205, Santa Barbara County, California32 objects
- Santa Barbara County, California32 objects
- Southern California32 objects
- Nevada12 objects
- Churchill County, Nevada7 objects
- NV-Ch-54 (Burnt Cave), Churchill County, Nevada7 objects
- Humboldt County, Nevada5 objects
- NV-Hu-300, Humboldt County, Nevada5 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California4 objects
- North Central California4 objects
- Northern California4 objects
- Yolo County, California4 objects