Carlsbad Caverns National Park is a United States National Park in the Guadalupe Mountains in southeastern New Mexico. The primary attraction of the park is the show cave, Carlsbad Cavern. The park contains over 117 caves. Three caves are open to public tours.

Slaughter Canyon Cave and Spider Cave are undeveloped,
excepted for designated paths for the guided adventure caving tours.

Outside the entrance to the caverns

Ampitheatre

Entrance to the caverns

Carlsbad Caverns is the most famous and is fully developed
with electric lights, paved trails, and elevators.

Rock of Ages in the Big Room

Carlsbad Cavern includes a large cave chamber, the Big Room, a natural limestone chamber which is almost 4,000 feet (1,220 m) long, 625 feet (191 m) wide, and 255 feet (78 m) high at the highest point. It is the third largest chamber in North America and the seventh largest in the world.

Devil's Spring

Temple of the Sun

Lechuguilla Cave is well known for its delicate speleothems and pristine underground environment. Guano mining occurred in the pit below the entrance in the 1910s. After gaining permission from the national park managers to dig into a rubble pile where wind whistled between the rocks when the weather changed, cavers broke through into a room in 1986. Over 120 miles of cave passage has been explored and mapped. It has been mapped to a depth of 1,600 feet (490 m), making it the deepest limestone cave in the U.S.

The Bottomless Pit was originally said to have no bottom. Stones were tossed into it, but no sound of the stones striking the bottom was heard. Later exploration revealed the bottom was about 140 feet (40m) deep and covered with soft dirt. The stones made no sound when they struck the bottom because they were lodged in the soft soil.

Balloon Ballroom

Located in the ceiling above the main entrance hall, this small room was first accessed by tying a rope to a bunch of balloons and floating them up into the passage.

Bat Cave

A large, unadorned rocky passage connected to the main entrance corridor. The majority of the cave's bat population lives in this portion of the cave, which was mined for bat guano in the early 20th century.

Bell Cord Room

Named for a long, narrow stalactite coming through a hole in the ceiling, resembling the rope coming through the roof of a belfry. This room is located at the end of the Left Hand Tunnel.

Bifrost Room

Discovered in 1982, it is located in the ceiling above Lake of the Clouds. Its name refers to a Norse myth about a world in the sky that was accessed from Earth by a rainbow. The room was given this name because of its location above the Lake of the Clouds and its colorful oxide-stained formations.

Big Room or The Hall of the Giants

The largest chamber in Carlsbad Caverns, with a floor space of 357,469 square feet (33,210 m2).

Chocolate High

A maze of small passages totaling nearly a mile (1500 m) in combined length, discovered in 1993 above a mud-filled pit in the New Mexico Room known as Chocolate Drop.

Green Lake Room

The uppermost of the "Scenic Rooms", it is named for a deep, malachite-colored pool in the corner of the room. In the 1940s, when the military was testing the feasibility of Carlsbad Cavern as an emergency fallout shelter, the Green Lake was used to look for ripples caused by a nuclear bomb test many miles away. None appeared.

Guadalupe Room

Discovered by a park ranger in 1966, this is the second largest room in Carlsbad Caverns. It is known for its dense collection of "soda straw" stalactites.

Hall of the White Giant

A large chamber containing a large, white stalagmite. Rangers regularly lead special wild-cave tours to this room.

King's Palace

The first of four chambers in a wing known as the "scenic rooms", it is named for a large castle-like formation in the center of the room.

Lake of the Clouds

The lowest known point in the cave. It is located in a side passage off the Left Hand Tunnel. It is named for its large lake containing globular, cloud-like rock formations that formed under water when the lake level was much higher.

Left Hand Tunnel

A long, straight passage marked by deep fissures in the floor. These fissures are not known to lead anywhere. The Left Hand Tunnel leads to the Lake of the Clouds and the Bell Cord Room.

Mabel's Room

A moderate-sized room located past the Talcum Passage in Lower Cave.

Mystery Room

A large, sloping room located off the Queen's Chamber, named for an unexplained noise heard only here. A small vertical passage at the far end connects it to Lower Cave.

New Mexico Room

Located adjacent to the Green Lake Room and accessed by means of a somewhat narrow corridor.

New Section

A section of fissures east of the White Giant formation and paralleling the Bat Cave. New discoveries are still being made in this section.

Papoose Room

Located between the King's Palace and Queen's Chamber.

Queen's Chamber

Widely regarded as the most beautiful and scenic area of the cave. Jim White's lantern went out in this chamber while he was exploring, and he was in the dark for over half an hour.

Spirit World

Located in the ceiling of the Big Room at its highest point (an area known as the Top of the Cross), this area is filled with white stalagmites that resembled angels to the room's discoverers.

Talcum Passage

A room located in Lower Cave where the floor is coated with gypsum dust.

The Rookery

One of the larger rooms in Lower Cave. A large number of cave pearls are found in this area.