The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

Fall is here, and leaf peepers everywhere are breaking out their flannels and mapping out routes to view the season's best colors ... this Little Grand Canyon brings fall flashiness every year ...

The day unfolds with the rhythmic hum of wheels on asphalt as our rented passenger van cruises through northern Arizona ...

Palo Duro Canyon State Park, featuring the "Grand Canyon of Texas" with its iconic views and vivid colors, has been ...