Park highlights thousands of years of history during nationwide celebration.

Deep below the forests of Kentucky is a world of water, stone and centuries-old human history. Mammoth Cave National Park has ...

GLASGOW, Ky. -- A new book about Mammoth Cave tells the story of the national park's slave history. The book, entitled "Making Their Mark: The Signature of Slavery at Mammoth Cave," is available at ...

The air is cool and damp. The light shining from behind is low and tinted, while a park ranger's hand hovers over a button. Then, a switch clicks. Light floods a chasm in the stone, a chamber called ...

Mammoth Cave, the world's longest known cave system, stretches 426 miles under Kentucky. The cave's limestone began forming 330 million years ago when the region was submerged under an ocean. Visitors ...

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

Paleontologists discovered two new species of ancient sharks and put together research using the sharks' fossilized teeth and even a set of gills found in the depths of Mammoth Cave National Park, ...