Roger Brucker and Jim Borden: "Beyond Mammoth Cave" (Southern Illinois University Press)

Roger Brucker and Jim Borden: "Beyond Mammoth Cave" (Southern Illinois University Press)

Two cave explorers - once rivals, now co-authors - tell the story of their discoveries in Kentucky's Mammoth Cave, which is three times longer than any other cave in the world.

Two cave explorers - once rivals, now co-authors - tell the story of their discoveries in Kentucky's Mammoth Cave, which is three times longer than any other cave in the world.

Guests

Roger Brucker

Author

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