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  2. List of caves in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_caves_in_the...

    The Caverns at Natural Bridge; Clarks Cave; Dixie Caverns; Endless Caverns; Gap Cave; Grand Caverns, formerly "Weyer's cave" Indian Jim's Cave; Luray Caverns; Melrose Caverns; Natural Tunnel; Ogdens Cave; Shenandoah Caverns; Skyline Caverns; Stay High Cave; Unthanks Cave

  3. List of longest caves in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_caves_in...

    Mammoth Cave, the longest known cave system in the world. The following is a list of the longest caves in the United States per length (> 50 km) of documented passageways. . Many passageways are still being discovered; this list is based on the latest verifiable

  4. Carlsbad Caverns National Park - Wikipedia

    en.wikipedia.org/wiki/Carlsbad_Caverns_National_Park

    The Big Room is the largest chamber in North America and the 32nd largest in the world. [4] In 1930, Carlsbad Caverns was established as a national park and was also recognized as a World Heritage Site in 1995. According to The Travel, it is renowned globally for being "one of the most accessible and best-preserved cave complexes in the world". [5]

  5. Lechuguilla Cave - Wikipedia

    en.wikipedia.org/wiki/Lechuguilla_Cave

    Stalagmites, stalactites, and draperies by a pool. Lechuguilla Cave offers more than extreme size. It holds a variety of rare speleothems, including lemon-yellow sulfur deposits, 20-foot (6.1 m) gypsum chandeliers, 20-foot (6.1 m) gypsum hairs and beards, 15-foot (4.6 m) soda straws, hydromagnesite balloons, cave pearls, subaqueous helictites, rusticles, U-loops, and J-loops.

  6. Mammoth Cave National Park - Wikipedia

    en.wikipedia.org/wiki/Mammoth_Cave_National_Park

    Tourists inside the cave. The park's mission is stated in its foundation document: [7] The purpose of Mammoth Cave National Park is to preserve, protect, interpret, and study the internationally recognized biological and geologic features and processes associated with the longest known cave system in the world, the park’s diverse forested karst landscape, the Green and Nolin rivers, and ...

  7. List of longest caves - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_caves

    Caves are found around the world. The largest form in areas of karst landforms whose rocks dissolve easily. Preferable conditions for karst cave formation are adequate precipitation, enough plants and animals to produce ample carbon dioxide, and a landscape of gentle hills which drains slowly.

  8. Craighead Caverns - Wikipedia

    en.wikipedia.org/wiki/Craighead_Caverns

    His excavation and findings are reported in American Museum Novitates, No. 1131 (August 6, 1941) on pages 1–12. The report includes photographs of the bones and footprints. Simpson referred the fossils to the large Panthera onca augusta, at that time the remains from Craighead Caverns were some of the best known of the subspecies.

  9. Grand Canyon Caverns - Wikipedia

    en.wikipedia.org/wiki/Grand_Canyon_Caverns

    In 1962, they were renamed The Grand Canyon Caverns. During the 1962 Cuban Missile Crisis, the U.S. government designated the caverns as a fallout shelter, with supplies for 2,000 people. These supplies remain in the caverns. [3] In 1979, a cosmic ray telescope was installed at Grand Canyon Caverns, 126 feet (38 m) below the surface. [4]