The 3.5 Billion Year Challenge GC99EMN
by rragan
Alameda county, CA, United States
4.11 Points
134 finds in 5 years, 6 months
Next find points: 4.08
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First available: April 29, 2021
Last Update: October 27, 2026 5:21 PM
Last Full Sync: October 27, 2026 5:21 PM
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Statistics last updated Friday, 30 October 2026 04:30:59 Eastern Daylight Time
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