Collection place
- North America1,836 objects
- The Americas1,836 objects
- United States1,835 objects
- California1,058 objects
- Nevada777 objects
- Pershing County, Nevada729 objects
- Humboldt Lake Bed, Pershing County, Nevada699 objects
- San Francisco Bay Area, California627 objects
- Northern California409 objects
- North Central California352 objects
- San Joaquin County, California236 objects
- Napa County, California235 objects
- Napa Valley, Napa County, California230 objects
- CA-SJo-68, San Joaquin County, California215 objects
- Marin County, California184 objects
- Point Reyes, Marin County, California160 objects
- Contra Costa County, California143 objects
- CA-Mrn-266, Tomales Point, Point Reyes139 objects
- Tomales Point, Point Reyes, Marin County139 objects
- CA-CCo-138, Oakley, Contra Costa County118 objects