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

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

    The following is a list of the longest caves in the United States per length (over 50 kilometres or 30 miles) of documented passageways. Many passageways are still being discovered; this list is based on the latest verifiable data. [1] Some caves and cave systems are partially accessible to the general public.

  3. List of caves in the United States - Wikipedia

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

    (Top) 1 Alabama. 2 Alaska. 3 Arizona. 4 Arkansas. 5 California. 6 Colorado. 7 Connecticut. 8 Delaware. 9 Florida. 10 Georgia. ... List of caves in the United States ...

  4. 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.

  5. 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 ...

  6. Lechuguilla Cave - Wikipedia

    en.wikipedia.org/wiki/Lechuguilla_Cave

    At 150.4 miles (242.0 km), Lechuguilla Cave is the eighth-longest explored cave in the world [1] and the second deepest (1,604 feet or 489 meters) in the continental United States. [2] It is most famous for its unusual geology , rare formations , and pristine condition.

  7. List of karst areas - Wikipedia

    en.wikipedia.org/wiki/List_of_karst_areas

    Podolia and Bukovina regions in the northeastern edge of the Carpathian Mountains which includes some of the largest gypsum caves in the world, including the Optymistychna Cave, which is over 200,000 meters in length, making it the longest cave in Eurasia, the third longest in the world, and the longest gypsum cave in the world. [citation needed]

  8. List of caves in Tennessee - Wikipedia

    en.wikipedia.org/wiki/List_of_caves_in_Tennessee

    Has the second-largest cave chamber in the United States. [18] Found in Fall Creek Falls State Park. Snail Shell Cave: Rutherford County: 9 miles (14 km) [19] 1951 Part of a larger cave network 13 miles (21 km) in length. [19] Tuckaleechee Caverns: Blount County: c.1850 Has the tallest underground waterfall in the eastern United States at 210 ...

  9. Colossal Cave (Arizona) - Wikipedia

    en.wikipedia.org/wiki/Colossal_Cave_(Arizona)

    Colossal Cave is a large cave system in southeastern Arizona, United States, near the community of Vail, about 22 miles (35 km) southeast of Tucson. It contains about 3.5 miles (5.6 km) of mapped passageways. Temperatures inside average 70 °F (21 °C) year-round. [1] Previous names include 'Mountain Springs Cave' and 'Five–Mile Cave'. [2]