Area fire departments responded to a residential structure fire on Mahan Road in Summerville on Friday.  Reports indicate that the mobile home and an adjacent camper were fully involved when firefighters arrived.  The Summerville Fire Department, along with Trion Fire Department and Hays Correctional Fire Department were able extinguish the flames upon arrival.  Both structures sustained substantial fire and smoke damage.  One person was transported by Atrium Health Floyd EMS for evaluation due to smoke inhalation.  Traffic was routed around the area due to a downed power line due to the fire.  There was no immediate word as to the cause of the fire.