There is a cave near New Braunfels, Texas (Comal County) that appears to have some man made drill holes in some large rocks/boulders just below the cave, as if someone had blasted there in the past. I grew up near this cave and played in it as a child (some 40 years ago) and often wondered about the holes (approx. 2″ in diameter and extending maybe 2′-3′ through the rock) drilled through the boulders. The cave has a small opening in the back that appears to go way back. As a young boy…