Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.

Mammoth Cave National Park in Kentucky is home to a wide variety of wildlife, both above and below ground. Most commonly-seen ...

The cave was apparently once believed to be an entrance into the underworld by the Lipan Apache, according to Jasper Gaffney, ...

Beneath the unassuming farmlands of West Liberty, Ohio lies a crystalline wonderland that feels more like stepping onto an alien world than a weekend trip in the Buckeye State. Ohio Caverns isn’t just ...

Instead, you’ll find formations in shades of red, orange, blue, and pure white – colors created by various minerals that have seeped through the limestone over eons. The iron oxide gives you those ...

Discover the jaw-dropping historical icon that is the underground wonderland of Mammoth Cave National Park in Kentucky.

At a site known as Natural Trap Cave, a team of scientists are rappelling down to uncover the secrets of what the Earth was ...

Mammoth Cave National Park in Kentucky holds centuries ... A 1.5-mile trail leads to the entrance of Timpanogos Cave National Monument in Utah, offering wide views of American Fork Canyon.

The “historic entrance” of Mammoth Cave National Park on Feb. 22, 2025. This is the largest natural opening into the Mammoth Cave system and was first used by prehistoric people roughly 4,000 ...

Many think of the west coast when it comes to national parks. The east coast houses some of America's best. We cover marvelous east coast national parks you should visit.

The entrance to the cave looks sterilized — a stainless steel door that wouldn’t seem out of place in a hospital looks wholly foreign out here in Mammoth Cave National Park. Yet our cave guide ...