National Park Service, Grand Canyon
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Fire crews allowed a fire to burn through brush on the Grand Canyon’s North Rim. They they lost control.
The Dragon Bravo Fire started on July 4 and was managed at first as a controlled burn. Then the wind picked up, and it quickly became uncontrollable.
Wildfires burning at or near the Grand Canyon's North Rim are still raging as strong winds, high heat and low humidity persist.
A wildfire burning in Grand Canyon National Park triggered a chlorine gas leak Friday afternoon after flames reached a water treatment facility.
At least 235 properties have either been destroyed, damaged or were threatened by the fire, according to preliminary numbers.