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Collection place
- California92
- North America[remove]92
- The Americas92
- United States92
- Northern California91
- Northwestern California78
- Humboldt County, California27
- Mad River, Humboldt County, California18
- Maple Creek, Mad River, Humboldt County18
- Del Norte County, California12
- Elk Valley, Del Norte County, California10
- Northeastern California10
- Mouth of Salmon River, Del Norte County, California9
- Shasta County, California9
- Baird (historic place), Shasta County, California6
- McCloud River, Shasta County, California6
- near Baird, Shasta County, California6
- Klamath River, Humboldt County, California5
- North Central California3
- Weitchpec, Humboldt County, California3