Assault on Briones – Observatory Observatory GC3QNV5
by GeoRedheads
Contra Costa county, CA, United States
32.0 Points
44 finds in 14 years
Next find points: 31.3
Show cache point calculation details
First available: August 10, 2012
Last Update: September 2, 2026 11:29 AM
Last Full Sync: June 24, 2026 9:23 AM
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