- North America✖Remove constraint Collection place: North America1,428 objects
- The Americas1,428 objects
- United States1,334 objects
- California1,194 objects
- San Francisco Bay Area, California1,032 objects
- Contra Costa County, California869 objects
- Brooks Island, Richmond, Contra Costa County855 objects
- CA-CCo-290, Brooks Island, Richmond855 objects
- Richmond, Contra Costa County, California855 objects
- Alameda County, California143 objects
- CA-Ala-309, Emeryville, Alameda County127 objects
- Emeryville, Alameda County, California127 objects
- Northern California113 objects
- North Central California57 objects
- Northwestern California52 objects
- Southwestern United States49 objects
- Arizona42 objects
- Casa Grande Ruins, Pinal County, Arizona38 objects
- Humboldt County, California38 objects
- Pinal County, Arizona38 objects