Barnesville is an active commuter railroad train station in Barnesville, Montgomery County, Maryland. Located on Beallsville Road, Barnesville station services trains of MARC Train's Brunswick Line between Union Station in Washington D.C. and Martinsburg, West Virginia. Additional trains operate to Frederick, Maryland. Amtrak's Capitol Limited operates through the station, but does not make any stops. The next station west is Dickerson while the next station east is Boyds. Barnesville station contains two low-level side platforms, connected by a pathway across the tracks.