The fire started around 2:23 p.m. Sunday near Rainbow Falls in southwest Douglas County.
According to Douglas County officials the location of the fire was near Highway 67 at Mile Marker 89.5.
According to Pike National Forest officials, 155 pre-evacuation notices were sent out Sunday afternoon
At least one helicopter and one single-engine tanker were used to battle the blaze.
There is no word on the cause of the fire.