Wildfires burning at the Grand Canyon and in Utah are so hot that they're spurring the formation of "fire clouds" that can create their own erratic weather systems.

A massive wildfire in northern Arizona has grown by thousands of acres over the weekend, as firefighters work to regain ...

The Dragon Bravo Fire continues to escape containment in part because of 'historically dry' air and gusty winds around the Grand Canyon. Monsoon moisture initially slowed the fire's spread, but the ...

A dramatic pyrocumulus cloud, or fire cloud, formed as the large Dragon Bravo Fire burned along the Grand Canyon's North Rim in Arizona.

The Dragon Bravo Fire added another 10,000 acres to its footprint as its swath of destruction surpassed 100,000 acres.

Researchers from the University of Cambridge have unearthed thousands of microscopic fossils from the iconic Canyon, ...

The wildfire—one the few to burn more than 100,000 acres this summer—is burning on the more remote North Rim 11 miles away. At 8,000 feet in elevation, the area is more of an alpine environment than ...

Democratic Gov. Katie Hobbs has toured the destruction left by a wildfire along the Grand Canyon’s North Rim. Hobbs surveyed ...

This Arizona town on Route 66 is known as the gateway to the West Rim of the Grand Canyon but also boasts a rich local ...

A national park in southwest Colorado partially reopened Wednesday for the first time since a fire broke out earlier this ...