- California15,304 objects
- North America15,304 objects
- Northern California✖Remove constraint Collection place: Northern California15,304 objects
- The Americas15,304 objects
- United States15,304 objects
- Northeastern California9,469 objects
- Lassen County, California9,241 objects
- North Central California5,812 objects
- Karlo area, Lassen County, California3,780 objects
- CA-Las-7, Karlo area, Lassen County3,764 objects
- Yolo County, California2,641 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California2,633 objects
- Honey Lake Valley, Lassen County, California2,103 objects
- Sacramento County, California2,097 objects
- CA-Las-1, Lassen County, California1,305 objects
- Lake County, California688 objects
- CA-Sac-56 (Mosher site), Sacramento County, California600 objects
- CA-Lak-30, Lake County, California539 objects
- CA-Sac-21 (Hollister Mound), Sacramento County, California498 objects
- Secret Valley, Lassen County, California445 objects