A wildfire that has closed the North Rim of Grand Canyon National Park raged out of control over the weekend and is now the ...

Pyrocumulus clouds, otherwise known as flammagenitus or “fire clouds,” develop due to “convection initiated by heat from ...

The Grand Canyon has been on fire for a month, as crews continue to battle the continental United States' largest wildfire ...

While the Dragon Bravo Fire has burned more than 123,000 acres, much of the surrounding national park remains open. Here’s ...

The fire in Grand Canyon National Park has grown to more than 100,000 acres amid dry weather and a weak monsoon season in ...

The Dragon Bravo Fire continues to escape containment in part because of 'historically dry' air and gusty winds around the ...

The Dragon Bravo Fire has exploded to over 105,000 acres, making it the largest wildfire in the United States so far this ...

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

A wildfire that broke out in the North Rim of the Grand Canyon has now been deemed a "megafire" due to its size.

The Dragon Bravo Fire has grown to over 130,000 acres, making its way onto the list of the 10 biggest fires in Arizona ...

The Grand Canyon draws millions of visitors each year, and local officials are warning of potentially severe impacts. On Monday, the mayor of Fredonia, a nearby town in Arizona, declared a local ...

As of Aug. 1, 1,189 personnel are working to contain the fire, which is being fueled by mixed conifer, aspen regeneration and ...