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Collection place
- California86
- North America86
- Northern California86
- The Americas86
- United States86
- Northwestern California71
- Humboldt County, California47
- Klamath River, Humboldt County, California30
- Weitchpec, Humboldt County, California17
- near Weitchpec, Klamath River, Humboldt County17
- Northeastern California13
- Mad River, Humboldt County, California11
- Maple Creek, Mad River, Humboldt County11
- Klamath River below Weitchpec, Humboldt County, California9
- Northern Sierras, Northern California8
- Calaveras County, California7
- Martin's Ferry, Humboldt County, California3
- Murphys, Calaveras County, California3
- Siskiyou County, California3
- near Murphys, Calaveras County, California3