National Geographic Documentaries

National Geographic Documentaries

Mysteries Underground (27x1)


Udgivelsesdato: Nov 18, 1992

Chronicles the exploration of the world's most exotic new cave: New Mexico's Lechuguilla Cave, which remained undisturbed for millions of years until 1986. Also see the 1972 expedition that stumbled upon a passageway that linked the Mammoth and Flint Ridge Cave systems, creating the longest cave network in the world.

  • Premieret: Sep 1965
  • Afsnit: 862
  • Følgere: 39
  • Kørende
  • CBS
  • Ukendt