The lightning-caused wildfire that consumed roughly 70 structures seemed unremarkable for days. High winds changed that.

Firefighters are trying to contain the Dragon Bravo Fire on the Grand Canyon’s North Rim and keep it from destroying more buildings.

The Dragon Bravo Fire has burned more than 8,500 acres southeast of the Grand Canyon. The fire was sparked by lightning on July 4 and has destroyed dozens of structures on the North Rim, including the historic Grand Canyon Lodge.

The fire on the North Rim of the Grand Canyon started from a lightning strike but was managed as a controlled burn until it spread.

The National Park Service is defending its decisions regarding letting the Dragon Bravo Fire burn before it got out of control.

Gov. Katie Hobbs and Senators Mark Kelly and Ruben Gallego are calling for an independent investigation into how federal officials managed the Dragon Bravo Fire burning on the North Rim of Grand Canyon National Park.

Lawmakers in Arizona are demanding an investigation into why the National Park Service made a decision to allow the lightning-caused Dragon Bravo Fire to continue as a controlled burn. FOX 10's Lindsey Ragas reports.