Collection place
- The Americas47,881 objects
- North America47,553 objects
- United States46,912 objects
- California34,930 objects
- Northern California20,768 objects
- Northeastern California13,122 objects
- Nevada7,899 objects
- San Francisco Bay Area, California7,164 objects
- North Central California5,649 objects
- Lassen County, California4,736 objects
- Humboldt County, Nevada3,686 objects
- Napa County, California3,564 objects
- Black Rock Desert Wilderness, Humboldt County, Nevada3,244 objects
- Eastern California2,875 objects
- Northern Sierras, Northern California2,843 objects
- East side of Black Rock Desert, Humboldt County, Nevada2,816 objects
- Sacramento County, California2,720 objects
- Modoc County, California2,694 objects
- Inyo County, California2,589 objects
- Central California2,440 objects