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1 Lechuguilla Cave, ________[3]

2 The cave system with the greatest total length of surveyed passage is Mammoth Cave (________, USA) at 591 kilometers (367 mi) in length.

3 The dissolution process produces a distinctive landform known as ________, characterized by sinkholes, and underground drainage.

4 ________ are found along coasts around the world.

5 This record is unlikely to be surpassed in the near future, as the next most extensive known cave is Jewel Cave near ________, at 225 kilometers (140 mi).

6 Exploring a cave for recreation or science may be called caving, potholing, or, in Canada and the United States, spelunking (see ________).

7 Jewel Cave, ________[3]

8 Kazumura Cave near ________ is a remarkably long and deep lava tube; it is 65.6 kilometers (40.8 mi) long.

9 Caves are found throughout the world, but only a portion of them have been explored and documented by ________.

10 The second deepest is Patkov Gušt at 553 meters (1,814 ft) in the Velebit mountain, ________.

💡 Interesting Facts

  • the Grutas de Cacahuamilpa National Park in Mexico includes one of the largest cave systems in the world, with some openings wide enough to be used as concert halls?
  • the Cave of the Mounds’s many speleothems have earned it recognition as the “jewel box” of North American caves?
  • the Vercors Cave System contains the largest cave entrance in Europe?
  • the blind cave beetle Leptodirus hochenwartii, originally discovered in 1831 in the Postojna cave system, was the first animal to be recognized as a true cave dweller?
  • there have been at least fifteen deaths at the Welsh cave Porth yr Ogof in the last twenty years, all but one in the seven-metre-deep Resurgance Pool?
  • the Cave Bath of Miskolc, Hungary is an unusual thermal bath with low salt content, in a natural cave, that allows people to take a bath for a longer time?
  • the Blauhöhle in Germany's Swabian Alb is a huge cave system with more than 50-meter (164-feet) high caverns that can be accessed by diving through the Blautopf (pictured)?
  • Tung Hua Lin led a team that designed and built China's first twin-engine aircraft in a cave to avoid detection by the Japanese during World War II?
  • white nose syndrome has caused a mortality rate of over 90% of bats in some caves?
  • Eigenmannia vicentespelaea is the only known South American knifefish that exclusively inhabits caves?
  • a Vihara is an Indian Buddhist cave monastery that takes its name from the Sanskrit word for "a secluded place in which to walk"?
  • Charterhouse Cave is the deepest cave in Southern England?
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