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Collection place
- California260
- North America260
- The Americas260
- United States260
- Northern California241
- Northeastern California168
- Shasta County, California67
- North Central California44
- Northwestern California29
- Modoc County, California28
- Humboldt County, California24
- Siskiyou County, California20
- Tehama County, California19
- Lassen County, California14
- Klamath River above Weitchpec, Humboldt County, California13
- Klamath River, Humboldt County, California13
- Orleans area, Humboldt County, California13
- Orleans, Humboldt County, California13
- Southern California13
- Thomas Creek Valley, Tehama County, California12