- California11 objects
- North America11 objects
- Northern California✖Remove constraint Collection place: Northern California11 objects
- The Americas11 objects
- United States11 objects
- Northwestern California5 objects
- Mendocino County, California4 objects
- North Central California4 objects
- Round Valley, Mendocino County, California4 objects
- Northeastern California2 objects
- Sacramento County, California2 objects
- San Joaquin County, California2 objects
- CA-Cal-82, Calaveras County, California1 objects
- CA-Hum-169 (Tsurai), Humboldt County, California1 objects
- CA-Las-7, Karlo area, Lassen County1 objects
- CA-SJo-105, Stockton, San Joaquin County1 objects
- CA-SJo-68, San Joaquin County, California1 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California1 objects
- CA-Sac-6, Sacramento County, California1 objects
- CA-Sac-66 (Morse Mound), Sacramento County, California1 objects