More non-caving info for those of you interested in the Big Bend Mosasaur Ranch Museum http://mosasaurranchmuseum.com/ Ken Barns is a friend, past Brewster County surveyor, and an "amateur" (no formal degree) paleontologist who knows more about Big Bend fossils (especially the mosasaurs) than most geologists. I have learned from him. In my mind he ranks as one of the two finest observers I have ever met - along with Donald Davis. Only Ken's focus is paleontology, not caves. Next time you are in the area you can probably find him on the Terlingua porch before sunset and make arrangements to meet him at his museum. DirtDoc