More than 9,100 acres in the Prescott National Forest have been burned by the growing Horse Fire as of Tuesday morning.
Forest officials said Tuesday that the fire had burned 9,162 acres with 21% containment.
Residents in nearby communities, including Crown King, have been evacuated from their homes since Friday, as more than 300 fire crews try to suppress the fire.
Crews are working to surround the fire and keep it out of Crown King, Minnehaha, Cleator, Black Canyon City, Groom Creek, Ponderosa Park, Walker, Potato Patch, Breezy Pines, Pine Flat, Lookout Mountain, Wilhoit, Wagoner, Walnut Grove and Prescott.
A wildfire in October is unusual for Arizona, as fire season is usually over by now.
But fire officials said this fire season could stretch well into winter because of an almost non-existent monsoon season and unusually warm temperatures and low humidity.
“I’ve never seen conditions like this this time of year," incident commander Cory Carlson said.