The longest cave in the world is now even longer, according to the Cave Research Foundation.Mammoth Cave National Park, located in South Central Kentucky, announced on its Facebook page that it has ...

Mammoth Cave National Park in Kentucky is home to the world's longest-known cave, which stretches over 400 miles in length. While exploring the cave system on guided or self-guided tours is a popular ...

The longest cave in the world is now even longer. Researchers have discovered eight new miles of the Mammoth Cave system, now making the total count 420 known miles of cave passages. The underground ...

Mammoth Cave has been captivating imaginations for thousands of years. “Obviously, the geology is amazing. It's what (first) brought people here and what brings people back to study this region,” said ...

Located in Central Kentucky, Mammoth Cave National Park is a UNESCO World Heritage Site and an International Biosphere Reserve. It is home to the longest known cave in the world and features over 400 ...

Two hundred feet below ground level at Mammoth Cave National Park, Park Ranger Jerry Bransford shines his flashlight on the cave's wall and illuminates an inscription: "Mat 1850." "Mat" was Jerry's ...