- North America✖Remove constraint Collection place: North America24 objects
- The Americas24 objects
- United States24 objects
- California10 objects
- Nevada9 objects
- Northern California4 objects
- Northeastern California3 objects
- San Francisco Bay Area, California3 objects
- Siskiyou County, California3 objects
- Southern California3 objects
- Washoe County, Nevada3 objects
- Arizona2 objects
- Black Rock Desert Wilderness, Humboldt County, Nevada2 objects
- CA-Sis-175, Scott Bar Mountains, Siskiyou County2 objects
- CA-Sol-10, Solano County, California2 objects
- Cochise County, Arizona2 objects
- Humboldt County, Nevada2 objects
- NV-Hu-17 (Buck Brush Springs), Humboldt County, Nevada2 objects
- Northern Channel Islands, Santa Barbara County, California2 objects
- Putah Creek, Solano County, California2 objects