Explore Mammoth Cave National Park, the longest cave system on Earth ... Humans first discovered this complex limestone labyrinth some 4,000 years ago beneath the Green River Valley of Edmonson County ...

Hundreds of thousands of visitors are drawn to the Kentucky marvel ... in locations away from cave tours.” There’s no entrance fee for Mammoth Cave National Park, but visitors do have to ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface of Mammoth Cave ... The least arduous cave tour (0.25 mile, 75 ...

Kentucky Edition is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV ...

This is a fee-free park, though cave tours are by admission. Mammoth Cave National Park is about 100 miles south of Louisville, Kentucky, and 10 miles from Cave City, where there is an ample ...

Students get hands-on lessons in geography, history, geology, and other subjects through the efforts of Mammoth Cave National Park and the Environmental Education Department. Kentucky Edition is ...