The world's longest cave is in Kentucky USA

Mammoth Cave in Kentucky, USA, is the longest cave is known in the world. It comprises more than 591 miles of passageways and each year are added several miles to new discoveries and connections.

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  • By: jmrentero
  • Level: Knob Polisher
  • Added: 181 weeks ago
  • Views: 268
  • Comments: 1
Description: Mammoth Cave in Kentucky, USA, is the longest cave is known in the world. It comprises more than 591 miles of passageways and each year are added several miles to new d... view all
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