Long thought to be an insignificant, smallish cave near the famous Carlsbad Caverns, Lechuguilla Cave is now recognized as the deepest limestone cave in the US and the world’s fifth longest cave. It was only in 1986 that cavers digging through rubble at the floor of the cave discovered its expansive network of more than 120 miles (193 km) of passages. The cave is famous for its rare geological beauty, featuring gypsum chandeliers, hydromagnesite balloons, helictites, soda straws, and what else? Discuss
Source: The Free Dictionary