At 1249hrs. Whiteford Volunteers were dispatched for an MVA with Rescue at the intersection of Pylesville Dooley Roads. At 1250hrs. Chief 6A691U1496R651 called enroute and arrived at 1252hrs. The incident was found north of the intersection located in Pennsylvania in Sta.57 first due who was also responding. Crew found a two vehicle rear collision and assisted with a minor extrication and patient treatment. Units cleared at 1315hrs. Units C-6A691U1496R651E613Sta.57