- North America45 objects
- The Americas45 objects
- United States✖Remove constraint Collection place: United States45 objects
- California18 objects
- Northern California15 objects
- Northeastern California12 objects
- Modoc County, California11 objects
- Northeastern United States6 objects
- New York state3 objects
- Connecticut2 objects
- Northwestern California2 objects
- San Francisco Bay Area, California2 objects
- Alameda County, California1 objects
- Alaska1 objects
- CA-Ala-309, Emeryville, Alameda County1 objects
- CA-Hum-169 (Tsurai), Humboldt County, California1 objects
- CA-Sis-262 (Foster site), Bogus Creek, Siskiyou County1 objects
- CA-Teh-193 (Payne Cave), Tehama County, California1 objects
- Churchill County, Nevada1 objects
- Emeryville, Alameda County, California1 objects