Mammoth Cave is now officially longer than 400 miles.

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Mammoth Cave is now officially longer than 400 miles.

This official announcement is a bit old, as the survey work that brought Mammoth over 400 miles was probably done during the October or December 2012 expeditions.

Update: I contacted some of my caving friends who survey in Mammoth regularly, and they have confirmed that the survey reached 400 miles during the October 2012 expedition.



  • danae

    Wow! That’s amazing! When I was reading Roger Brucker’s books back in the 80’s, known areas of Mammoth Cave extended to only a fraction of that size.

    His were among the most exciting books I’ve ever read, Thanks for sharing this news.

  • D. K. Williams

    Never been to Mammoth, but I’ve visited Carlsbad Caverns (NM), which is great fun.

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