Fire damaged a pair of mobile homes early Monday morning at 2525 West 8th in The Dalles.  According to Mid-Columbia Fire and Rescue, the fire started around 4 a.m. in a single-wide mobile home that suffered significant damage.  It then spread to a shed that burned to the ground, and a second mobile home that received exterior damage.  One resident was taken to Mid-Columbia Medical Center for treatment of an injury.  The cause of the fire has not yet been determined.  Crews from Mid-Columbia Fire and Rescue and Dallesport were involved in extinguishing the fire.