No one knows how big the underside is. More than 365 miles of the five-level cave system have been mapped, and new caves are continually being discovered. Two layers of stone underlie Mammoth's ...

In the Tlayócoc cave in Mexico, traces of a mysterious civilization from over 500 years ago have been discovered. This find ...

The Crystal Cave in Sequoia and Kings Canyon National Parks in California has been closed since 2023 for maintenance. Cave ...

It's been not quite two months since a year-long project to upgrade the elevators at Wind Cave National Park was finished, ...

Great bustards are listed as endangered worldwide by the International Union for Conservation of Nature, and are found ...

LOS ANGELES – The stalactites and stalagmites of Sequoia National Park’s Crystal Cave, a sprawling subterranean wonder that’s been closed for four years, will be accessible again this summer.

Despite their charm, the Rock Houses had no running water or electricity. And as modern conveniences became more accessible ...

Since 2004, Roger Hartley has led visitors through the three-mile cave system. But after two decades, he decided to start planning for his future. “So truthfully, for us, this has been great,” Hartley ...