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Collection place
- California42
- North America42
- Northern California[remove]42
- The Americas42
- United States42
- Northwestern California38
- Humboldt County, California13
- Del Norte County, California9
- Klamath River, Humboldt County, California8
- Elk Valley, Del Norte County, California7
- Mouth of Salmon River, Del Norte County, California6
- Weitchpec, Humboldt County, California5
- near Weitchpec, Klamath River, Humboldt County5
- Northeastern California4
- Northern Sierras, Northern California3
- Calaveras County, California2
- Klamath (CDP), Del Norte County, California2
- Klamath River below Weitchpec, Humboldt County, California2
- Klamath River valley, Del Norte County, California2
- Mad River, Humboldt County, California2