Blue Line (washington Metro)

	type	Rapid Transit
	system	Washington Metro
	locale	Fairfax Co , Alexandria , and Arlington, Virginia <br> Washington, DC <br> Prince George's County, Maryland
	start	Franconia-Springfield (west)
	end	Largo Town Center (east)
	stations	27
	open	July 1 , 1977
	operator	Washington Metropolitan Area Transit Authority
	character	At-grade, elevated, and underground
	el	Third Rail

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