- California209 objects
- North America209 objects
- Northern California✖Remove constraint Collection place: Northern California209 objects
- The Americas209 objects
- United States209 objects
- Northwestern California182 objects
- Humboldt County, California23 objects
- Northeastern California20 objects
- Del Norte County, California17 objects
- Elk Valley, Del Norte County, California17 objects
- Mouth of Salmon River, Del Norte County, California9 objects
- Klamath River, Humboldt County, California8 objects
- Mad River, Humboldt County, California8 objects
- North Central California7 objects
- Crescent City, Del Norte County, California5 objects
- Klamath River below Weitchpec, Humboldt County, California5 objects
- Maple Creek, Mad River, Humboldt County5 objects
- CA-DNo-11 (Point St. George site), Del Norte County, California3 objects
- Point St. George, Del Norte County, California3 objects
- Klamath River area, Northwestern California, California2 objects