- California13,464 objects
- North America13,464 objects
- Northeastern California✖Remove constraint Collection place: Northeastern California13,464 objects
- Northern California13,464 objects
- The Americas13,464 objects
- United States13,464 objects
- Lassen County, California5,071 objects
- Northern Sierras, Northern California2,844 objects
- Modoc County, California2,696 objects
- Surprise Valley, Modoc County, California2,192 objects
- Siskiyou County, California1,768 objects
- Placer County, California1,553 objects
- Karlo area, Lassen County, California1,348 objects
- CA-Las-7, Karlo area, Lassen County1,339 objects
- CA-Mod-204, Modoc County, California1,301 objects
- Eagle Lake, Lassen County, California1,119 objects
- Shasta County, California992 objects
- Lava fields, Siskiyou County, California952 objects
- CA-Sis-7, Lava fields, Siskiyou County895 objects
- Canby's Cross, Lava fields, Siskiyou County895 objects