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STGS Spring Field Trip - Texas Drainage Tunnel April 11th, 2026 This field trip will deepdive, literally, 200 hundred feet into the tunneling (more...)
STGS Annual Crawfish Boil April 16th, 2026 Located at the Koehler Pavilion in Brackenridge Park, 3700 N St Mary's St, San (more...)
South Texas Geological Society
