Washington County, Maryland is included in the Hagerstown-Martinsburg, MD-WV Metropolitan Statistical Area, which is also included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area. The closes states to Washington County is west Virginia, Pennsylvania, Virginia, and Tennessee. The western portions of the Province of Maryland (including present Washington County) were incorporated into Prince George's County in 1696. This original county included six current counties. The first to be created was Frederick, separated from Prince George's County in 1748. Following independence, the sovereign State of Maryland formed Washington County on September 6, 1776, by the division of Frederick County. At the same time, a portion
Capital Beltway station trains (the future MARC Penn Line) began stopping at Capital Beltway; the nearby Lanham and Landover stations were closed. Amtrak and Conrail abandoned Capital Beltway on October 30, 1983, in favor of nearby New Carrollton, which had been a Washington Metro stop since 1978. Capital Beltway station Capital Beltway was a railway station in Lanham, Maryland. It was built in 1970 by the Penn Central Transportation Company in partnership with the state of Maryland, the United States Department of Transportation (DOT), and Prince George's County. The station was located on the Northeast Corridor approximately north of Union Station in Washington,