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.

Wildfires burning at or near the Grand Canyon's North Rim are still raging as strong winds, high heat and low humidity ...

Nearly 400 firefighters are working around the clock on the Dragon Bravo Fire burning on the North Rim of Grand Canyon ...

Officials have closed the North Rim of the Grand Canyon as the White Sage Fire burns near the town of Fredonia. Just 35 miles ...

The White Sage Fire, located 15 miles southwest of Fredonia, has been spreading rapidly at 5 to 7 miles per day. However, ...

The White Sage Fire, burning in northern Arizona near the destructive Dragon Bravo Fire, continues to grow with evacuations ...

Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have ...

Highway closures and evacuations remain in effect as a wildfire burns more than 51,000 acres in far northern Coconino County.

The White Sage Fire was burning in Arizona bout 15 miles southeast of Fredonia in Coconino County and north of the Grand ...

The White Sage Fire near the North Rim of the Grand Canyon has grown to 19,000 acres, prompting evacuations for nearby ...

Parts of the Jacob Lake area are under GO evacuation orders, and the North Rim of the Grand Canyon is also evacuating. The fire has grown to nearly 50,000 acres.

News journalist Joe Dana is live at the South Rim, explaining what happened over the weekend to resulted in such destruction ...