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  2. Three Counties System - Wikipedia

    en.wikipedia.org/wiki/Three_Counties_System

    The Three Counties System is 253 metres (830 ft) deep. The highest point is the entrance to Large Pot which is at an altitude of 402 metres (1,319 ft), and the lowest point is in Gavel Pot where the upstream sump has been dived to a depth of −64 metres (−210 ft), an altitude of 149 metres (489 ft).

  3. List of deepest caves - Wikipedia

    en.wikipedia.org/wiki/List_of_deepest_caves

    14.8 km (9.2 mi) Mexico ... Map all coordinates in "List of deepest caves" using OpenStreetMap. Download coordinates as: KML; GPX (all coordinates) GPX (primary ...

  4. Sistema Cheve - Wikipedia

    en.wikipedia.org/wiki/Sistema_Cheve

    Sistema Cheve (/ ˈ tʃ eɪ v eɪ / CHEV-ay; Spanish: Cueva Cheve, Sistema Cheve) is a deep cave located in the Sierra Juárez mountain range in the southern Mexico state of Oaxaca. As of June 2023, its deepest point has been measured at 1,529 metres (5,016 ft) deep, [ 2 ] This makes it the second deepest known cavern in Mexico and the Americas ...

  5. Krubera Cave - Wikipedia

    en.wikipedia.org/wiki/Krubera_Cave

    In a search for the route to 2000 meters depth: The deepest cave in the World in the Arabika massif, Western Caucasus. Nat. Speleol. Soc. News (USA), 59 (9). 252–257. Klimchouk, A. and Kasjan, Yu. 2004. Krubera: il piu profondo abisso del mondo (Alla ricerca del −2000 metri nel massiccio di Arabika). La Rivista del CAI, 71–75.

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

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

    Carlsbad Caverns National Park: Restricted access, requires authorization [13] 5 Fisher Ridge Cave System: 212.1 km (131.8 mi) [1] near Brownsville, Kentucky: partly within Mammoth Cave National Park: 6 Helms Deep Cave

  7. Pluragrotta - Wikipedia

    en.wikipedia.org/wiki/Pluragrotta

    [2] [8] They had the cooperation of S. E. Lauritzen at the University of Bergen who at the time was the only one in Norway doing professional research on the caves. [ 8 ] Exploration has been undertaken by two Norwegian diving organizations, with Norsk Teknisk Dykkekrets doing much of the early surveying and Reel Action Diving continuing the ...

  8. Blanchard Springs Caverns - Wikipedia

    en.wikipedia.org/wiki/Blanchard_Springs_Caverns

    The "Giant Flowstone" in Blanchard Springs Caverns, seen on the Discovery Tour. Blanchard Springs Caverns is a cave system located in the Ozark–St. Francis National Forest in Stone County in northern Arkansas, USA, 2 miles (3.2 km) off Highway 14 a short distance north of Mountain View. [1]

  9. Speedwell Cavern - Wikipedia

    en.wikipedia.org/wiki/Speedwell_Cavern

    Speedwell Cavern is one of the four show caves in Castleton, Derbyshire, England. [1]The cave system consists of a horizontal lead miners' adit (a level passageway driven horizontally into the hillside) 200 metres (660 ft) below ground leading to the cavern itself, a limestone cave.