Collection place
- North America6,193 objects
- The Americas6,193 objects
- United States6,167 objects
- California5,085 objects
- Northern California3,700 objects
- Northeastern California3,125 objects
- Northern Sierras, Northern California2,240 objects
- Placer County, California1,464 objects
- Nevada1,081 objects
- Martis Valley, Placer County, California820 objects
- Modoc County, California728 objects
- Surprise Valley, Modoc County, California728 objects
- CA-Mod-204, Modoc County, California727 objects
- CA-Pla-5 or 6, Placer County, California620 objects
- Nevada County, California538 objects
- San Francisco Bay Area, California526 objects
- San Juan Ridge, Nevada County, California493 objects
- North Central California443 objects
- Central California430 objects
- South Central California423 objects