JACKSON COUNTY, Colo. — The Mullen Fire is now 127,503 acres Friday, growing by more than 10,000 acres since Thursday.
The fire is burning in the Medicine Bow National Forest in Wyoming and crossed into Jackson County, Colorado Wednesday.
According to fire officials, they're expecting an active fire day. Crews will be dealing with warm, dry and breezy conditions.
Mandatory evacuations remain in place for the east side of Jackson County in the area of Highway 127 by the North Sand Hills and Mendenhaul. The Jackson County Sheriff's Office said, despite rumors, the Walden and Cowdrey areas are not under mandatory evacuation.
Officials don't know what caused the Mullen Fire to start on Sept. 17. It began 38 miles west of Laramie, Wyoming. Smoke from the fire continues to contribute to the Front Range's poor air quality.