Collection place
- The Americas21,260 objects
- North America21,105 objects
- United States20,836 objects
- California13,025 objects
- Northern California8,464 objects
- Northeastern California5,962 objects
- Nevada5,379 objects
- Humboldt County, Nevada3,587 objects
- Black Rock Desert Wilderness, Humboldt County, Nevada3,189 objects
- East side of Black Rock Desert, Humboldt County, Nevada2,815 objects
- Lassen County, California2,531 objects
- North Central California2,128 objects
- San Francisco Bay Area, California1,973 objects
- Northern Sierras, Northern California1,559 objects
- Eastern California1,247 objects
- Sacramento County, California1,229 objects
- Karlo area, Lassen County, California1,198 objects
- CA-Las-7, Karlo area, Lassen County1,197 objects
- Modoc County, California1,051 objects
- Inyo County, California1,036 objects