Underneath the earth’s belly, a boat ride inside a 30-million-year-old all-water cavern, Penn’s Cave, reveals nature’s most ...

The Great Transformation The Dolomites are about 250 millions years old and are composed mainly of sedimentary rocks and ...

The oldest known cave painting on Earth is not a charging bison in Europe but a reddish pig on a limestone wall in Indonesia, ...

That’s exactly what happens at Longhorn Cavern State Park in Burnet, Texas. Located in the heart of Texas Hill Country, this underground wonderland isn’t just another hole in the ground – it’s ...

For Texans, Longhorn Cavern represents a different side of a state often characterized by its wide-open spaces and big sky. It’s a reminder that the Lone Star State holds mysteries and beauty below ...

Estrella Resources has launched its maiden drilling campaign at the Werumata limestone project in Timor-Leste. The company is targeting high-purity calcite limestone across six diamond and 26 RC holes ...

Between the Sinks and the Rise of the Middle Fork of the Popo Agie, the river famously disappears into subterranean mystery. Locals like to say that the river's ...

New Mexico National Parks, Carlsbad Caverns and White Sands National Parks, are impressive and there's a host of other 'national' sites too.

North Carolina is an ideal spot to find fossilized shark teeth. Be prepared for the coolest finds with my tips on knowing where to look.