Indeed, the entire atlantic seacoast from the Carolinas on down to Florida is Karst carbonate. https://karstwaters.org/wp-content/uploads/2015/04/US_KARST_MAP_

Indeed, the entire atlantic seacoast from the Carolinas on down to Florida is Karst carbonate. https://karstwaters.org/wp-content/uploads/2015/04/US_KARST_MAP_AQUIFERS_AK-HI-PR_no-relief_small.jpg https://karstwaters.org/wp-content/uploads/2015/04/US_KARST_...