A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

Nevada has a secret it’s been keeping from the rest of America. While everyone else is fighting for elbow room at the Las Vegas buffets, there’s a whole state of quirky, character-filled small towns ...

Great Basin National Park nearby offers ancient bristlecone pines (some older than the pyramids), mysterious limestone caves, and Nevada’s only glacier, proving that this state contains multitudes ...

Death Valley is the hottest, driest and lowest national park in the US – and arguably the most visually arresting.

Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight million years. The Saharo-Arabian Desert is one of the world’s largest ...

The Mother Town of the Southwest offers unique shops, petroglyphs, and natural beauty, all just a stone's throw from Zion ...