Nah, it was too awkward. The guide wasn't very old, and could have made an error. Of course it could have been different material, but the cave is still there.

Nah, it was too awkward. The guide wasn't very old, and could have made an error. Of course it could have been different material, but the cave is still there. http://www.blackhillsbadlands.com/business/jewel-cave-national-monument http://www.blackhillsbadlands.com/business/jewel-cave-nation...