Collection place
- The Americas5,984 objects
- North America5,943 objects
- United States5,941 objects
- California3,394 objects
- Nevada2,495 objects
- Northern California2,008 objects
- San Francisco Bay Area, California1,305 objects
- Northeastern California1,260 objects
- Pershing County, Nevada1,187 objects
- Humboldt Lake Bed, Pershing County, Nevada744 objects
- Modoc County, California716 objects
- North Central California703 objects
- Surprise Valley, Modoc County, California701 objects
- Napa County, California574 objects
- Napa Valley, Napa County, California557 objects
- CA-Mod-204, Modoc County, California547 objects
- Churchill County, Nevada544 objects
- Humboldt County, Nevada384 objects
- Contra Costa County, California336 objects
- Sacramento County, California329 objects