The Grand Canyon's North Bravo Fire intensified on July 11, the day before Katy Rock Shop owner Jacob Proctor and his family arrived at the 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.

Fire activity on the Dragon Bravo Fire, located at Grand Canyon National Park’s North Rim, remains “extremely active,” according to an incident update Monday.

Officials say crews battling the Dragon Bravo Fire on the North Rim of Grand Canyon National Park continue to encounter extreme fire behavior as they attempt to save remaining structures.

Tourists talk about their visit to the Grand Canyon as the Dragon Bravo Fire is seen from the Mather Point Overlook.

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.

Arizona's governor and its two senators have a question for federal officials after a devastating Grand Canyon wildfire: Why did you let it burn? The Dragon Bravo fire ended up destroying a historic lodge in the North Rim and several other decades-old structures when it burned out of control.

Arizona’s Democratic senators, Mark Kelly and Ruben Gallego, are demanding answers from the Trump administration about its response to the Dragon Bravo Fire that destroyed structures at the northern r