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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. Atchison Storage Facility - Wikipedia

    en.wikipedia.org/wiki/Atchison_Storage_Facility

    In 1952, the facility was renamed the United States Storage Facility- Atchison Caves. The Army converted two of the largest mines (more than 60 acres (24 ha) of underground space) into storage areas with the installation of concrete block walls, concrete floors, electrical lighting, sump pumps, air handling equipment and an extensive ...

  4. List of caves in Tennessee - Wikipedia

    en.wikipedia.org/wiki/List_of_caves_in_Tennessee

    Cherokee Caverns Knox County: 1 mile (1.6 km) 1854 Craighead Caverns: McMinn County: 0.75 miles (1.21 km) c. 1820 Home to the Lost Sea, the largest underground lake in the United States and second largest in the world. [7] Cumberland Caverns: Warren County: 27.7 miles (44.6 km) [8] 1810 Devilstep Hollow Cave: Bledsoe County: 360 feet (110 m) [9 ...

  5. SubTropolis - Wikipedia

    en.wikipedia.org/wiki/SubTropolis

    The interior of SubTropolis. SubTropolis is a business complex located inside of a 55,000,000-square-foot (5,100,000 m 2), 1,260-acre (5.1 km 2) mine in the bluffs north of the Missouri River in Kansas City, Missouri, United States.

  6. Cumberland Caverns - Wikipedia

    en.wikipedia.org/wiki/Cumberland_Caverns

    Location: McMinnville, Tennessee, US: Coordinates: 1]: Length: 27.7 miles (45 km) [2]: Discovery: 1810 by Aaron Higgenbotham: Geology: Monteagle Limestone: Entrances: 3: List of entrances: Higgenbotham Cave, Henshaw Cave, Onyx Curtain: Access: restricted: Show cave opened: July 4th, 1956: Lighting: electric: Website: cumberlandcaverns.com: Cumberland Caverns is a national natural landmark and ...

  7. Endless Caverns - Wikipedia

    en.wikipedia.org/wiki/Endless_Caverns

    Endless Caverns is a commercial show cave located three miles (4.8 km) south of New Market, Virginia, United States.The cavern is located in the pet-friendly, Endless Caverns Resort, featuring RV sites, vacation rental cottages and a number of amenities, including an outdoor pool, playground, hiking trails, catch-and-release fishing pond, mining sluice, and more.

  8. Caverns of Sonora - Wikipedia

    en.wikipedia.org/wiki/Caverns_of_Sonora

    The Caverns of Sonora, a National Natural Landmark, [1] is a unique cave located 8 miles (13 km) west of the small city of Sonora, the seat of Sutton County, Texas. It is a world-class cave because of its stunning array of calcite crystal formations, especially helictites. These helictites are found in extreme abundance, often with a rare ...

  9. Indiana Caverns - Wikipedia

    en.wikipedia.org/wiki/Indiana_Caverns

    This disproved the idea that the two caves were separate; they are now proved to be one cave. This connection made the Binkley Cave system thirty-five miles long - solidifying it, perhaps permanently, as the longest cave in Indiana. [1] [2] Development of Indiana Caverns began on June 1, 2012; the cave opened to the public on June 15, 2013.