Geology

Gold, silver, copper, lead, and zinc were once extracted at this abandoned mine near Lookout Mountain.

Come for the springs; stay for the mud bath.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

This weird, elephant-shaped rock also hosts two ancient tombs.

Peek into a cave of giant, glimmering crystals.

The Old Man of the Mountain’s less-famous, but still beloved little brother is said to resemble a leader of the Abenaki tribe.

A frozen oasis lies beneath the scorching New Mexico desert.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.

A strange sandstone formation in the middle of nowhere presents an interesting climbing opportunity.

Sand dunes from a glacial lake are preserved in this woodland park.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

A naturally occurring amphitheater carved by erosion into the mountainside.