The longest cave in the world. Its passages extend 340 miles in all directions below the earth's surface. With many more miles unexplored! The deepest explored level is at 350 feet. The tallest chamber is Mammoth Dome with a 190 foot high ceiling (taller than the Statue of Liberty).

Explored by ancient man 4,000 years ago this cave continues to surprise spelunkers with its intricate gypsum (calcium carbonate) rock formations and mysterious life forms. The fish, shrimp, crayfish and spiders found within Mammoth have adapted to life in total darkness by evolving without eyes and contain an unpigmented, clear, colorless exoskeleton.