Collection place
- North America6,544 objects
- The Americas6,544 objects
- United States6,335 objects
- California5,155 objects
- Northern California3,908 objects
- Northeastern California3,258 objects
- Northern Sierras, Northern California1,297 objects
- Lassen County, California1,189 objects
- Karlo area, Lassen County, California1,164 objects
- CA-Las-7, Karlo area, Lassen County1,163 objects
- Nevada1,147 objects
- Placer County, California799 objects
- Modoc County, California657 objects
- Surprise Valley, Modoc County, California657 objects
- San Francisco Bay Area, California626 objects
- Martis Valley, Placer County, California560 objects
- CA-Mod-204, Modoc County, California527 objects
- North Central California404 objects
- Nevada County, California388 objects
- Humboldt County, Nevada364 objects