Explorations of a submerged passage in the Tlayococ cave in Mexico led to an undiscovered room. Within the room, cave explorers discovered bracelets sitting atop stalagmites and other artifacts from a ...

Deep inside a remote Mexican cave, a pair of explorers thought they had stumbled on modern litter, the kind of plastic and debris that too often mars even the most isolated landscapes. Instead, they ...

A national park in Kentucky has the longest known cave system in the world. This week, Floyd Collins is being remembered there. He was an explorer whose death a century ago became an international ...

An explorer of the Mammoth Cave system in Kentucky who died 100 years ago is credited with the creation of the national park. A national park in Kentucky has the longest known cave system in the world ...