Missouri’s Meramec Caverns feature rare rock formations, rich history, and a colorful fall landscape above ground.

Analyses of toppled stalagmites and other fallen rock formations in two Israeli caves may provide hints about the rate of ancient earthquakes in the area. Stalactites, stalagmites, and other ...

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 ...

Ruby Falls is an underground waterfall located over 1,000 feet beneath Lookout Mountain in East Tennessee. Travelers visit for the dramatic waterfall reveal, guided cave tours with stunning rock ...

This is an archived article and the information in the article may be outdated.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 ...

BAYFIELD, Wis. >> Walking atop a frozen stretch of Lake Superior’s south shore, Jon Michels paused to look at a 30-foot-tall rippled ice wall cascading over a sandstone cliff cave. Then he noted ...

PORTLAND, Oregon — Researchers were recently surprised to find that calcite is still accumulating in a kilometers-long, continuous trough of a New Mexico cave that may be the world’s longest cave ...

After touring this Arkansas cavern full of whimsical natural formations such as stalagmites and flowstones, pan for gems so you can leave with a souvenir.

BAYFIELD, Wis. — Walking atop a frozen stretch of Lake Superior’s south shore, Jon Michels paused to look at a 30-foot tall rippled ice wall cascading over a sandstone cliff cave. Then he noted ...

Vandals have damaged Fitton Cave in Newton County. They removed several cave formations, including stalagmites and draperies, said Cassie Branstetter, a spokeswoman for the Buffalo National River. It ...