Whitten Fire The Bureau of Land Management Miles City office says the Whitten Wildfire in southeast Montana is contained. The fire, estimated at 1,300 acres, is burning on the Northern Cheyenne Reservation, as well as the Bureau of Land Management and private lands. It was first reported on July 3 and the cause is unknown. Wheeler Fire No structures are threatened by 2 lightning caused fires in the Custer Gallatin National Forest, reports forest service officials. Fire crews are enforcing fire lines and continuing mop up efforts on the Wheeler Mountain and Blacktail Fires. The Wheeler Mountain Fire is about 7 miles southeast of Gallatin Gateway in the Bear Creek area, and the Blacktail Fire near Blacktail Peak at the northern end of the Bridger Mountains. Both fires are listed at less than an acre in size.