Kristen Bobo, left, and Dava Lundquist, Park Interpretive Rangers at Rock Island State Park, check their lights before entering the cave. Kristen Bobo began a new career as a welder and cave gater ten years ago after finding endangered bats viciously killed in a cave she managed. She built this gate at Big Bone Cave State Natural Area near Spencer, Tenn. The large gate is intended to keep people from damaging historical and pre-historic artifacts in this cave and also the bat habitat it provides. (AP Photo/The Tennessean, Larry McCormack)
Photo by Associated Press /Chattanooga Times Free Press .
published Sunday, September 18th, 2011