Upper Penn Mine GC53CRA
by Ron Streeter
Calaveras county, CA, United States
136 Points
9 finds in 12 years, 3 months
Next find points: 122
Achilles points: 13.6
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First available: April 24, 2014
Last Update: July 19, 2026 8:40 AM
Last Full Sync: July 19, 2026 8:40 AM
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Statistics last updated Friday, 24 July 2026 05:26:59 Eastern Daylight Time
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