Collection place
- North America275 objects
- The Americas275 objects
- United States274 objects
- California246 objects
- Northern California211 objects
- North Central California118 objects
- Lassen County, California93 objects
- Northeastern California93 objects
- Lake County, California82 objects
- CA-Lak-30, Lake County, California81 objects
- Honey Lake Valley, Lassen County, California50 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California32 objects
- Yolo County, California32 objects
- NV-Wa-46, Washoe County, Nevada28 objects
- Nevada28 objects
- Washoe County, Nevada28 objects
- Honey Lake, Lassen County, California24 objects
- Madeline Plains, Lassen County, California24 objects
- San Francisco Bay Area, California22 objects
- Sonoma County, California20 objects