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This National Park Is Home to the Longest Cave in the World—and Only 426 Miles Have Been Explored So Far

Here’s how to plan a trip to Mammoth Cave National Park.
Lexington Herald Leader

A trip to KY’s Mammoth Cave reminds me how vital our national parks are to the US | Opinion

The entrance to the cave looks sterilized — a stainless steel door that wouldn’t seem out of place in a hospital looks wholly foreign out here in Mammoth Cave National Park. Yet our cave guide that ...