- California15 objects
- North America15 objects
- Northern California✖Remove constraint Collection place: Northern California15 objects
- The Americas15 objects
- United States15 objects
- Northeastern California12 objects
- Modoc County, California11 objects
- Northwestern California2 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
- Humboldt County coast, Humboldt County, California1 objects
- Humboldt County, California1 objects
- Mendocino County, California1 objects
- North Central California1 objects
- Round Valley, Mendocino County, California1 objects
- Siskiyou County, California1 objects
- Tehama County, California1 objects
- Trinidad Bay, Humboldt County, California1 objects
- Trinidad, Humboldt County, California1 objects