She was written out of Grand Canyon history, but fires are putting her iconic buildings at risk. Meet Mary Colter, the architect you've never heard of.

Arizona's governor has demanded an investigation into why a wildfire that destroyed a historic lodge and dozens of other structures on the North Rim of the Grand Canyon was allowed to burn for a week before federal firefighters tried to put it out.

Gov. Katie Hobbs questioned why the U.S. government decided to manage the Dragon Bravo fire, which started with a lightning strike, as a “controlled burn” during the height of the summer.

What fueled the explosive growth of the Dragon Bravo Fire was a mix of gusty winds, dry air and above-normal heat – weather conditions experts described as atypical for this time of year, when monsoonal moisture typically tamps down wildfire risk across Arizona.

The Grand Canyon Lodge was the park's one and only hotel, according the National Park Service, with the next nearest lodgings roughly 18 miles away.