Researchers are using a technique to map out Yellowstone’s subsurface. The method is geophysics, a subfield of geology that ...

Pennsylvanians will now get to explore the great indoors. Gov. Josh Shapiro (D) gathered with officials below ground on ...

Laurel Caverns, Pennsylvania's first underground state park, opens April 22, offering visitors a unique cave experience.

A newly identified Underground Railroad passage is putting the spotlight on a New York City museum and its struggle with a ...

MADRID, March 31 (Reuters) - Spanish police have discovered a drug-smuggling tunnel in the North African exclave of Ceuta, ...

Fort Hood soldiers are training in underground tunnels to prepare for mass casualty scenarios, reflecting lessons learned ...

The Department of Conservation and Natural Resources lists Laurel Caverns as the state’s next park and notes it sits atop a roughly 435-acre geological preserve with more than four miles of wide, ...

Discover the process of building an underground bathhouse and living space using only natural materials and basic tools.

U.S. Central Command took to X on April 1st, releasing footage of U.S. forces dropping precision munitions on underground ...

They chose a quiet spot and began digging straight down to create a secret underground house. Every shovel of soil had to be removed by hand, keeping the site low-profile and controlled. As the walls ...

A massive anthracite mine fire has turned Centralia, Pennsylvania, into a ghost town, and it’ll likely continue burning for ...