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Length of Mammoth Cave Extended

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    18th Sep, 2021


Mammoth Cave National Park, home to the world’s longest-known cave system, is now even longer. Mapping and exploration by the Cave Research Foundation has revealed 8 new miles to the Mammoth Cave system, making the total count 420 known miles of passages!

About the Cave

  • Location: South Central Kentucky
  • Mammoth Cave was created by the natural process of limestone erosion, known as karst topography. 
    • During this process, rain and rivers slowly dissolve and shape soft limestone, creating a vast system of caves. 
    • Underground rivers are still carving new passages today. 
  • It received its official designation as the world’s longest cave system in 1969. At the time, there were 65 miles of surveyed passageways.