Lechuguilla Cave in Carlsbad Caverns National Park, the seventh longest cave in the world, with 216 km, New Mexico, USA Posted on October 17, 2022Author carolinegoodmanPosted in Uncategorized Lechuguilla Cave in Carlsbad Caverns National Park, the seventh longest cave in the world, with 216 km, New Mexico, USA#Etats-Unis, #travel, #Adventure, #Stalactites, #stalagmites