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 ...

Pennsylvania hides an underground river that continues far beyond what anyone has mapped, shrouded in mystery.

This is an archived article and the information in the article may be outdated.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. SAN DIEGO — Southern California is home to ...

Explore stunning cave hikes in Illinois with towering sandstone cliffs, hidden rock shelters, and dramatic natural arches waiting along scenic forest trails.

SPRINGFIELD, Mo. (KY3) - It’s a unique job that includes several duties. Part doctor. Part engineer. And part Michelangelo. Jonathan Beard goes around painting, planning, and giving new life to cave ...

Located in southern Missouri and northern Arkansas, the Ozarks are a large section of land famous for natural wonders: state parks, lakes, mountains, plateaus, and rivers. What many visitors don't ...

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images Missouri has a whole other world under the surface of the Earth. Far below the surface of Missouri, a state that is ...

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.