Below the Chihuahuan Desert in southeastern New Mexico, lies an extensive system of limestone caves, among them the famed Carlsbad Cavern, home to one of North America's largest underground chambers.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS – Missouri is known for its famous ...

Below the Chihuahuan Desert in southeastern New Mexico, lies an extensive system of limestone caves, among them the famed Carlsbad Cavern, home to one of North America’s largest underground chambers.

Fantastic Caverns is being restored over this fall and winter with help from Ozarks cave expert Jonathan Beard. Fantastic Caverns’ cave formations include an awe-inspiring display of columns, cave ...

Jewel Cave, located 13 miles west of Custer, has more than 208 miles of “mapped and surveyed passage ways,” with hundreds of suspected passages yet to be explored, according to the National Park ...

The first person to peer into the 18-inch crack in an Amador County hillside got quite the surprise. The gap swallowed the sunlight, exhaling sweet, cool air. Translucent pillars flushed orange in the ...

Beneath the United States lies a surprising network of caves shaped over millions of years. Some feel almost otherworldly, with strange rock formations and the occasional glow from naturally occurring ...