21 Apr 2007
Why is There so Much Limestone in Guadalupe River State Park: Presenter: Bill Ward, Professor Emeritus of Geology, University of New Orleans, now retired to the Hill Country, columnist for the Boerne Star.
What is limestone and why is it so abundant in this area? To answer this question we'll have to consider the last 120 million years of geologic history of this part of the Edwards Plateau.