While exploring caves along a riverbank, a group followed a tunnel that quickly led deep underground. The passage opened into massive chambers filled with crystal formations and towering limestone ...

Missouri is freckled with geologic features like caves and sinkholes. This is because the bedrock — composed of soluble rock like limestone and dolomite — is conducive to karst formation. Missouri has ...

Carlsbad Caverns National Park in New Mexico offers unique and breathtaking limestone cave formations, hiking trails, and educational experiences.

JEWEL CAVE NATIONAL MONUMENT, S.D. — Caver Mike Wiles has helped document the far reaches of this cave that's a favorite Black Hills tourist attraction, but tours are available here year-round and ...

Local cavers detail the beauty of caves and what fuels their passion to keep exploring. The Central Indiana Grotto is a group of cavers who meet monthly in Indianapolis. Each year they host an event ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

The discovery of more than 100 prehistoric structures in the Cova Dones cave in Spain makes it one of the most significant prehistoric underground sites in the world. Archaeologists found stalagmites ...

Looking for a fun way to beat the record-breaking heat Florida has seen this summer? There’s one state park near Florida’s borders with Alabama and Georgia where you can dip into some cool caves. And ...

When I reached him, Roger Brucker was at a National Speleological Society convention in Upstate New York where he was busy signing books. Members of the society are cavers — folks who explore caves.