Collection place
- North America658 objects
- The Americas658 objects
- United States658 objects
- California602 objects
- San Francisco Bay Area, California433 objects
- Contra Costa County, California180 objects
- Unincorporated western Contra Costa County, California128 objects
- CA-CCo-151, El Sobrante, Contra Costa County120 objects
- El Sobrante, Contra Costa County, California120 objects
- Lindsey Slough, Solano County, California117 objects
- Solano County, California117 objects
- Northern California106 objects
- CA-Sol-2, Solano County, California91 objects
- North Central California83 objects
- Marin County, California67 objects
- Central California63 objects
- Central California coast63 objects
- Monterey County, California63 objects
- Napa County, California60 objects
- Napa Valley, Napa County, California60 objects