- California107 objects
- North America107 objects
- Northern California✖Remove constraint Collection place: Northern California107 objects
- The Americas107 objects
- United States107 objects
- Northwestern California98 objects
- Humboldt County, California18 objects
- Del Norte County, California13 objects
- Elk Valley, Del Norte County, California13 objects
- Klamath River, Humboldt County, California8 objects
- Mouth of Salmon River, Del Norte County, California8 objects
- Northeastern California6 objects
- Klamath River below Weitchpec, Humboldt County, California5 objects
- CA-DNo-11 (Point St. George site), Del Norte County, California3 objects
- Mad River, Humboldt County, California3 objects
- Maple Creek, Mad River, Humboldt County3 objects
- North Central California3 objects
- Point St. George, Del Norte County, California3 objects
- Crescent City, Del Norte County, California2 objects
- Klamath River area, Northwestern California, California2 objects