Collection place
- North America239 objects
- The Americas239 objects
- United States239 objects
- California84 objects
- Northeastern United States81 objects
- West Virginia81 objects
- Wood County, West Virginia81 objects
- CA-Fre-115, Fresno County, California70 objects
- Central California70 objects
- Fresno County, California70 objects
- South Central California70 objects
- Nevada68 objects
- Nye County, Nevada45 objects
- NV-Ny-1272, Nye County, Nevada22 objects
- Lincoln County, Nevada19 objects
- NV-Ln-1720 (Oceana Spring), Lincoln County, Nevada12 objects
- CA-LAn-24, Topanga Canyon, Los Angeles County6 objects
- Los Angeles County, California6 objects
- NV-Ny-1275, Nye County, Nevada6 objects
- Santa Monica Mountains, Los Angeles County, California6 objects