page_title: Carlsbad Caverns National Park
section_title: Named rooms
hierarchical_section_title: Carlsbad Caverns National Park / Named rooms
caption_attribution_description: English: Carlsbad Caverns panoramic image
context_page_description: Carlsbad Caverns National Park is an American national park in the Guadalupe Mountains of southeastern New Mexico. The primary attraction of the park is the show cave, Carlsbad Cavern. Visitors to the cave can hike in on their own via the natural entrance or take an elevator from the visitor center.
  The park entrance is located on US Highway 62/180, approximately 18 miles southwest of Carlsbad, New Mexico. Carlsbad Caverns National Park participates in the Junior Ranger Program. The park has two entries on the National Register of Historic Places: The Caverns Historic District and the Rattlesnake Springs Historic District. Approximately two thirds of the park has been set aside as a wilderness area, helping to ensure no future changes will be made to the habitat.
  Carlsbad Cavern includes a large limestone chamber, named simply the Big Room, which is almost 4,000 feet long, 625 feet wide, and 255 feet high at its highest point. The Big Room is the largest chamber in North America and the thirty-first largest in the world.
context_section_description: Some of the following rooms are not open to the public because of inaccessibility and safety issues.
  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 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 "Bifrost Bridge"). 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 totalling 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 early 1960s, 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.
  Halloween Hall
  A room roughly 30 feet in length located above the Spirit World. Named for its discovery on October 31, 2013.
  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 underwater 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. Many cave pearls are found in this area.
  Underground Lunchroom
  Located in the Big Room at the head of the Left Hand Tunnel. It contains a cafeteria that was built in the 1950s, and is where the elevators from the 
caption: Panorama of cavern's interior
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