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Collection place
- California8
- North America8
- The Americas8
- United States8
- Berryessa Valley, Napa County, California7
- CA-Nap-93, Berryessa Valley, Napa County7
- Napa County, California7
- San Francisco Bay Area, California7
- CA-Sis-262 (Foster site), Bogus Creek, Siskiyou County1
- Northeastern California1
- Northern California1
- Siskiyou County, California1