At more than 30 miles in length, Carlsbad Cavern contains heavily decorated large passages and rooms and contains the Big Room, the largest easily accessible cave room in the United States. At over 138 miles in length, Lechuguilla Cave is the 7th longest cave in the world and is the deepest limestone cave in the United States at 1,604 feet deep. Lechuguilla Cave contains unique minerals and speleothems such as the large gypsum 'chandeliers' that hang from ceilings in one room that are 20 feet in length and weigh hundreds of pounds.
30 miles|Carlsbad Cavern|138 miles|Lechuguilla Cave 30 miles in length, Carlsbad Cavern
30 miles|Carlsbad Cavern|138 miles|Lechuguilla Cave 30 miles in length, Carlsbad Cavern