The Silver Line is a rapid transit line of the Washington Metro system, consisting of 28 operational stations and an additional six under construction. The line runs in Fairfax County and Arlington County, Virginia, the District of Columbia, and Prince George's County, Maryland, United States. The Silver Line currently runs from in Virginia to in Maryland. Five stations are shared with the Orange Line alone, thirteen with both the Orange and Blue lines from to , and five stations with the Blue Line alone to both lines' eastern terminus at Largo Town Center. Only five operating stations, which began service on July 26, 2014, and the six stations under construction are exclusive to the Silver Line.