- California44,092 objects
- North America44,092 objects
- Northeastern California✖Remove constraint Collection place: Northeastern California44,092 objects
- Northern California44,092 objects
- The Americas44,092 objects
- United States44,092 objects
- Northern Sierras, Northern California13,237 objects
- Lassen County, California13,150 objects
- Modoc County, California9,451 objects
- Surprise Valley, Modoc County, California7,548 objects
- CA-Mod-204, Modoc County, California4,958 objects
- Siskiyou County, California4,352 objects
- Karlo area, Lassen County, California3,819 objects
- CA-Las-7, Karlo area, Lassen County3,803 objects
- Placer County, California3,514 objects
- Calaveras County, California3,195 objects
- Shasta County, California3,149 objects
- Nevada County, California2,534 objects
- Honey Lake Valley, Lassen County, California2,266 objects
- San Juan Ridge, Nevada County, California2,174 objects