Far below the surface of Mexico’s Yucatán Peninsula, a flooded labyrinth of limestone tunnels has quietly guarded one of the ...

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 ...

South Dakota’s unforgettable landmarks showcase natural beauty history and adventure from towering monuments to hidden gems ...

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 ...

Activity 6.2 typically involves hands-on exploration and analysis of sediment samples, maps, and data to understand the ...

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 ...

Halite (NaCl): Once approximately 90% of the water has evaporated, the solution becomes saturated with sodium chloride, and ...

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 ...

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.

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