- California100 objects
- North America100 objects
- Northern California✖Remove constraint Collection place: Northern California100 objects
- The Americas100 objects
- United States100 objects
- Northwestern California50 objects
- Northeastern California40 objects
- Humboldt County, California16 objects
- North Central California10 objects
- Klamath River, Humboldt County, California9 objects
- Del Norte County, California8 objects
- Elk Valley, Del Norte County, California8 objects
- Mouth of Salmon River, Del Norte County, California8 objects
- Mendocino County, California7 objects
- Modoc County, California7 objects
- Northern Sierras, Northern California6 objects
- Shasta County, California6 objects
- Klamath River below Weitchpec, Humboldt County, California5 objects
- Calaveras County, California4 objects
- Hoopa Valley Reservation, Humboldt County, California4 objects