Collection place
- North America3,984 objects
- The Americas3,984 objects
- United States3,984 objects
- California3,755 objects
- Northern California3,751 objects
- Northeastern California3,656 objects
- Lassen County, California3,653 objects
- Karlo area, Lassen County, California3,399 objects
- CA-Las-7, Karlo area, Lassen County3,383 objects
- Nevada229 objects
- Washoe County, Nevada229 objects
- NV-Wa-46, Washoe County, Nevada112 objects
- CA-Lak-140, Lake County, California95 objects
- Lake County, California95 objects
- North Central California95 objects
- Secret Valley, Lassen County, California81 objects
- NV-Wa-47, Washoe County, Nevada77 objects
- CA-Las-194, Surprise Valley, Lassen County56 objects
- Surprise Valley, Lassen County, California56 objects
- Secret Creek, Lassen County, California43 objects