- North America7 objects
- The Americas7 objects
- United States7 objects
- California6 objects
- CA-CCo-138, Oakley, Contra Costa County5 objects
- Contra Costa County, California5 objects
- Oakley, Contra Costa County, California5 objects
- San Francisco Bay Area, California5 objects
- CA-SJo-155, Stockton, San Joaquin County1 objects
- Churchill County, Nevada1 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada1 objects
- Nevada1 objects
- North Central California1 objects
- Northern California1 objects
- San Joaquin County, California1 objects
- Stockton, San Joaquin County, California1 objects