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 ...

What secrets can we unearth about the future of our planet from this petrified forest in Arizona? Locked within the stones and fossils of Petrified Forest National Park lies a record of life, death, ...

Where some visitors see unparalleled natural beauty, others feel "underwhelmed" at an Arizona spot named among most disappointing national parks.

Petrified Forest National Park is a hidden gem in the Arizona desert. It’s famous for its colorful petrified wood, stunning badlands, and rich history. Visitors can explore ancient fossils, Native ...

Petrified Forest National Park is the only national park in the U.S. with a section of old Route 66. The park is also home to a "rainbow" forest, which has colorful tree fossils that are more than 200 ...