Arizona's Petrified Forest National Park has 200-million-year-old tree fossils, Painted Desert views, and historic Route 66 ...

Petrified Forest National Park may not ring a bell, even though more than half a million people visited last year, according to National Park Service data. The park is right off Interstate 40 in ...

The Petrified Forest National Park is Arizona's least visited national park. I stopped at the park on a recent road trip across America's Southwest. I discovered colorful fossilized logs, uncovered ...

New discoveries of small animals that lived more than 200 million years ago are changing how paleontologists think about biodiversity in the Triassic. Looking for fossils in Petrified Forest National ...

PHOENIX — Petrified Forest National Park announced the sightings of Yellow-billed Cuckoo, a threatened bird along the Puerco River within the park. One individual bird was heard on July 15 and another ...

Forward [sic] / William G. Parker, David D. Gillette, and Randall B. Irmis -- Dedication to Sidney R. Ash, Ph.D. / David D. Gillette and William G. Parker -- On the shoulders of giants : influential ...

The Grand Canyon and the Petrified Forest in Arizona are iconic natural wonders that attract visitors from across the globe. Each year, millions of people come to marvel at the breathtaking landscapes ...