Collection place
- North America426 objects
- The Americas426 objects
- United States426 objects
- California329 objects
- Northeastern California279 objects
- Northern California279 objects
- CA-Las-194, Surprise Valley, Lassen County278 objects
- Lassen County, California278 objects
- Surprise Valley, Lassen County, California278 objects
- Nevada97 objects
- CA-Nap-1 (Goddard Mound), Napa Valley, Napa County50 objects
- Middle Napa Valley, Napa County, California50 objects
- Napa County, California50 objects
- Napa Valley, Napa County, California50 objects
- Oakville area, Napa Valley, Napa County50 objects
- San Francisco Bay Area, California50 objects
- Churchill County, Nevada30 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada15 objects
- Humboldt County, Nevada10 objects
- Humboldt Lake region, Churchill County, Nevada10 objects