Highway closures and evacuations remain in effect as a wildfire burns more than 58,000 acres in Coconino County. It is one of two blazes raging at or near the northern rim of the Grand Canyon.

Explore every nook and cranny, both in and atop the deepest gorge in America: Hells Canyon of the Snake River.

A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park.

An upcoming episode of the PBS documentary series “Human Footprint” focuses on the Colorado River and premieres in Flagstaff ...

A Mount Horeb family on vacation to Arizona found themselves airlifted out of the Grand Canyon after a major fire made its way to a water ...

The rash of global heat waves across the Northern Hemisphere comes as average global temperatures continue to climb, driven ...

To skirt the tedium of the L.A.-to-Vegas slog, leave the asphalt behind.

"Though it was definitely not your average vacation trip, everything worked out okay. We made the best of it," Russ Christian ...

ALBUQUERQUE, N.M. (AP) — U.S. land managers are racing the clock as hotter, drier weather raises the risk of wildfires in the ...

Here's what we know about the two wildfires that have destroyed tens of thousands of acres of forest and burned at least 70 structures.

After the Dragon Bravo fire destroyed the historic lodge and other buildings on the night of the eleventh, Horning noticed on ...

Crews fighting the Dragon Bravo Fire on the North Rim of the Grand Canyon have successfully safeguarded a critical drinking ...