A wildfire that has closed the North Rim of Grand Canyon National Park raged out of control over the weekend and is now the largest currently burning in the country. The Dragon Bravo fire has burned more than 133,000 acres and was only 13 percent contained as of Wednesday morning, according to a federal interagency website that tracks wildfires.

Historically dry conditions have combined with gusty winds to make it harder for crews to get a handle on a wildfire burning along the North Rim of the Grand Canyon, causing containment figures to plummet as the blaze nearly tripled in size in just a few days.