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
Harmony Hall (Fort Washington, Maryland) stage plays, art exhibits, arts classes, scout meetings, and other cultural programs. The building was originally an elementary school. Harmony Hall (Fort Washington, Maryland) Harmony Hall, located in Fort Washington, Maryland, is managed by the United States National Park Service as part of the National Capital Parks-East system. It has been a National Park Service site since 1966. Harmony Hall is a -story Georgian country house built of red brick during the eighteenth century. It is surrounded by of land on Broad Creek, a Potomac River tributary. The house was built circa 1769 by Enoch Magruder. After his death, the