One of the planet’s largest underground passages ... rise from moon-pale banks of sediment in the Drunken Forest—a cave named for formations that tilt at unusual angles.

Kirsten Bahr is a physical science technician for the National Park Service and the chair of the Salt Lake Grotto club. Throughout her education, Bahr has researched caves and traversed the cold ...

A vast cave network waits below the surface of a beautiful but unassuming 80-square-mile landscape of hilly forest cut by ...

From the famous Kubla Kahn formation at Kartchner Caverns to the deep history of Colossal Cave, here's what to know about 10 ...

There are many Mammoth Cave trails winding for miles underground, and rightfully so, what many people think of when they hear ...

Hiking columnist Susan Anderson is on the road in Missouri. She took the time to visit a place she's been wanting to visit.

Among the giant sequoias you’ll find an underground cave filled with stalactites ... then descends through the Sequoia National Forest, finally ending at the Cedar Grove area of Kings Canyon ...

The award-winning market covers every corner of the town, with events at several locations, including several underground caves. Known as Kerststad Valkenburg, the Christmas market was ranked ...

The caverns are 210 feet underground and are accessible ... Access requires a Forest Service permit. fs.usda.gov. Coronado Cave is a limestone cave in Coronado National Memorial in southern ...