Mammoth, the world's longest known cave system ... The toughest challenge is the five-mile, six-hour, belly-crawling Wild Cave Tour, offered daily in summer and weekends year-round.

The National Park Service has seen around 1,000 jobs cut, including some at Mammoth Cave National Park, in recent weeks as ...

Explore Mammoth Cave National Park, the longest cave system on Earth, featuring the richest known habitat for cave wildlife in the world. It may be difficult to think of caves as spacious and grand, ...

We've mined through dozens of publicly available caves ... Wild Tour. It feels like spring year-round at Inner Space Cavern, a consistently 72-degree underground space where you can see mammoth ...

Researchers have discovered a new-to-science species of ancient shark during an ongoing paleontological resource inventory at ...

For example, Kentucky's Mammoth Cave National Park offers adventures ... For skilled spelunkers, the park offers permits for "wild caving" tours of four undeveloped cave systems.