Corridors Natural Resources Caves: Area Caves Creeks: Creeks Creeks The Blue Hole Endangered and Threatened Species: Endangered and Threatened Species Flora: Fauna: Endangered and Threatened Species Kilns: Kilns Limestone Features: Limestone Cliffs Use-of-Local-Limestone Other Natural Resources: THE BALCONES ESCARPMENT When Dinosaurs Roamed the Helotes Creek Valley