Dragon Bravo Fire burns 50 000 ha (123 000 acres), becomes Arizona’s 10th largest wildfire on record

The Dragon Bravo Fire, a megafire ignited by lightning on July 4,  in Grand Canyon National Park’s North Rim area, Arizona, has burned an estimated 49 845 ha (123 171 acres) as of August 3, according to the U.S. Forest Service (USFS). Containment is reported at 13 % under a full suppression strategy.

This is now the tenth-largest fire on record for Arizona, and the largest fire for the contiguous United States in 2025.

The fire has destroyed the historic Grand Canyon Lodge and at least 80 additional structures on July 12–13, including visitor cabins and park administrative buildings. No fatalities or injuries have been reported.

More than 1 200 personnel are assigned to the incident. Crews are reinforcing containment lines along the fire’s northern flank, conducting firing operations near Kaibab Lodge, and targeting unburned terrain in the northwest sector.

Fire managers report that low relative humidity, at times near 10 %, and gusts up to 56 km/h (35 mph) continue to challenge suppression efforts.

Nighttime humidity recovery above 50% and intermittent cloud cover have provided temporary relief; however, drying conditions are forecast into the coming week.

The initial “confine and contain” strategy, later shifted to full suppression, has drawn criticism from Arizona officials and prompted calls for a federal review of early incident management decisions.

The entire North Rim of Grand Canyon National Park is closed for the 2025 season, including major trails and inner‑canyon facilities such as Phantom Ranch, the North Kaibab Trail, and the South Kaibab Trail.

State Route 67 remains closed while State Route 89A has reopened. Smoke from the fire continues to reduce air quality and visibility across the park and surrounding areas.

The extreme fire behavior has produced pyrocumulus and pyrocumulonimbus clouds, leading to erratic local weather and hazardous fire conditions.

Reet Kaur

I’m a science journalist and researcher at The Watchers, contributing to the Epicenter edition, where I cover peer-reviewed scientific research and emerging discoveries across Earth and space sciences. With a background in astronomy and a passion for environmental science, I’ve worked in shark and coral conservation in Fiji, conducting reef and shark-behavior research, contributing to mangrove restoration, and earning PADI Open Water and Coral Reef Certifications. I bring a blend of scientific rigor and storytelling to illuminate the discoveries shaping our planet and beyond.

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