The Blue Line of the Washington Metro in the United States consists of 27 rapid transit stations from Franconia–Springfield to Largo Town Center. It has stations in Fairfax County, Alexandria and Arlington, Virginia, the District of Columbia, and Prince George's County, Maryland. Thirteen of the line's stations are shared with the Orange Line, and another portion is also shared by the Yellow Line; only eight stations are exclusive to the Blue Line. Beginning in 2013, its stations between Rosslyn and Stadium-Armory will also be shared with the Silver Line. The Blue Line is an integral part of the Washington Metropolitan Area Transit Authority (WMATA) Metrorail system.
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