Jewel Cave, located 13 miles west of Custer, has more than 208 miles of “mapped and surveyed passage ways,” with hundreds of suspected passages yet to be explored, according to the National Park ...

Scientists believe they're close to solving an ancient mystery involving a strange hominin skull that was neither Neanderthal ...

Caves are quiet and dark, tucked a world away from the busy life above ground. But deep inside them, a few extraordinary ...