- California150 objects
- North America150 objects
- Northern California✖Remove constraint Collection place: Northern California150 objects
- The Americas150 objects
- United States150 objects
- Northeastern California88 objects
- Northern Sierras, Northern California56 objects
- Northwestern California43 objects
- Amador County, California36 objects
- CA-Ama-3 (Bamert Cave), Amador County, California31 objects
- Mendocino County, California29 objects
- Shasta County, California24 objects
- McCloud River, Shasta County, California20 objects
- near Baird, Shasta County, California20 objects
- North Central California19 objects
- CA-Sha-20, Shasta County, California17 objects
- Round Valley, Mendocino County, California9 objects
- Lake County, California8 objects
- Tuolumne County, California8 objects
- Upper Lake, Lake County, California6 objects