- The Americas✖Remove constraint Collection place: The Americas2,935 objects
- California2,928 objects
- North America2,928 objects
- United States2,928 objects
- San Francisco Bay Area, California2,023 objects
- Napa County, California1,330 objects
- Berryessa Valley, Napa County, California1,329 objects
- CA-Nap-93, Berryessa Valley, Napa County1,307 objects
- Northern California895 objects
- Contra Costa County, California613 objects
- Northeastern California574 objects
- CA-CCo-138, Oakley, Contra Costa County568 objects
- Oakley, Contra Costa County, California568 objects
- North Central California317 objects
- Tehama County, California270 objects
- Shasta County, California229 objects
- CA-Sha-52, Shasta County, California196 objects
- Fall River Valley, Shasta County, California196 objects
- CA-Teh-1 (Kingsley Cave), Tehama County, California177 objects
- Northern Sierras, Northern California132 objects