DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Points for the thickness of the glauconite marker unit
Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer 
system were developed to define an updated hydrogeologic framework as part of the U.S. 
Geological Survey Groundwater Resources Program. This feature class contains points 
depicting the thickness of the glauconite marker unit.