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 ...

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 ...

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 ...

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 ...

An artist’s reconstruction of the fossilized landscape, plants and animals found preserved in a remote bonebed in Petrified Forest National Park in Arizona. Illustration by Brian Engh. Note to editors ...

Petrified Forest National Park, 18 miles southeast of Holbrook, is world-renowned for its petrified wood deposits, but much less known for its mining history and potash deposits. The area is located ...

In an earlier Ask a Ranger column, I wrote about the topic of geoheritage sites — places of special cultural, scientific, educational or aesthetic value — and what makes those places important to ...

A remarkable finding has surfaced in the colorful, fossil-rich badlands of Arizona’s Petrified Forest National Park: North America’s oldest known pterosaur. The newly identified species — a flying ...

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Deborah Woodcock has received funding from the American Philosophical Society, the National Science Foundation, and National Geographic. Herb Meyer has been supported in this project as an employee of ...