In the hills outside the small village of Sexi, Peru, a fossil forest holds secrets about South America’s past millions of years ago. When we first visited these petrified trees more than 20 years ago ...

Gazing across the Painted Desert of northern Arizona today, it’s hard to believe that 200 million years ago the region was a primeval tropical forest watered by abundant streams and inhabited by a ...

Petrified wood is an incredible naturally occurring phenomenon that can be found all over the world, including in the United States. But if you're not familiar with the ancient work of natural art, it ...

If your destination is Flagstaff, the Grand Canyon, or even Las Vegas, add a pit stop to see another National Park Service site in Northern Arizona. Petrified Forest National Park is just a few hours ...

Chris Conway walked the familiar walkway into Calistoga’s historic Petrified Forest, past where he once listened to the turnstile clicking with visitors, past where a vast oak tree once stood, and ...