- North America✖Remove constraint Collection place: North America1,874 objects
- The Americas1,874 objects
- United States1,711 objects
- California1,064 objects
- San Francisco Bay Area, California644 objects
- Nevada520 objects
- CA-SMa-151 (Phleger Mound), Princeton, San Mateo County385 objects
- Half Moon Bay, San Mateo County, California385 objects
- Princeton, San Mateo County, California385 objects
- San Mateo County, California385 objects
- Northern California350 objects
- Northeastern California300 objects
- CA-Las-194, Surprise Valley, Lassen County278 objects
- Lassen County, California278 objects
- Surprise Valley, Lassen County, California278 objects
- Napa County, California197 objects
- Churchill County, Nevada176 objects
- Mexico159 objects
- Central Mexico155 objects
- West-Central Mexico155 objects