Researchers have found a "unique" collection of "cave pearls"—some of which contain archaeological artifacts—in an ancient tunnel, a study has reported.

Cold water dripped on my shoulder and slid down my back. The walls were slippery and my feet held little traction as I slid down the rope, repelling into the darkness of Copperhead Cave.

By Elizabeth Hunter A young man who grew up in a network of prehistoric caves owned by his parents is now running them as a tourist attraction. Oliver Bowerman, 26, ...

Indiana's longest cave tour is approximately 80 minutes long, with sights like the Midwest's largest deposits of Ice Age bones and fossils, along with a 40-foot waterfall.