- California34 objects
- North America34 objects
- Northern California✖Remove constraint Collection place: Northern California34 objects
- The Americas34 objects
- United States34 objects
- North Central California24 objects
- Sacramento County, California14 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California10 objects
- CA-Sac-6, Sacramento County, California10 objects
- Northeastern California10 objects
- Lassen County, California9 objects
- San Joaquin County, California5 objects
- CA-Las-45, Lassen County, California3 objects
- CA-SJo-68, San Joaquin County, California3 objects
- Eagle Lake, Lassen County, California3 objects
- CA-Col-2 (Howell's Point), Colusa County, California2 objects
- CA-Las-126, Eagle Lake, Lassen County2 objects
- CA-Las-7, Karlo area, Lassen County2 objects
- Colusa County, California2 objects
- Karlo area, Lassen County, California2 objects