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 ...

The Notch Trail is my favorite hike in Badlands National Park, South Dakota. This epic trail leads to incredible views o ...

Wupatki National Monument is one of the most fascinating historic places in Arizona. The Puebloan ruins are strikingly similar to Machu Picchu.