The Washington and Old Dominion Railroad Regional Park is a linear regional park in Northern Virginia. The park's primary feature is the Washington and Old Dominion Railroad Trail (abbreviated as W&OD Trail), an asphalt-surfaced paved rail trail that runs through densely populated urban and suburban communities as well as through rural areas.Description and map of W&OD Trail in NVRPA "Washington & Old Dominion Railroad Regional Park" marker at trailhead of W&OD Trail in Shirlington in Arlington County, Virginia. See photographs and description of the marker in Part of (1) (2) Most of the trail travels on top of the rail bed of the former Washington and Old Dominion Railroad, which closed in 1968.History of W&OD Railroad in NVRPA marker at trailhead of W&OD Trail in Shirlington in Arlington County, Virginia: Part of
