Virginia State Route 7 (VA 7) is a major primary state highway and busy commuter route in northern Virginia, United States. It travels southeast from downtown Winchester to SR 400 (Washington Street) in downtown Alexandria. Its route largely parallels those of the Washington & Old Dominion Trail (W&OD Trail) and the Potomac River. Between its western terminus and Interstate 395 (I-395), SR 7 is part of the National Highway System. In 1968, the Virginia State Highway Commission designated the road as the "Harry Flood Byrd Highway" between Alexandria and Winchester to commemorate Harry F. Byrd Sr. (1887–1966). Route description SR 7 begins downtown in the independent city of Winchester, as East Piccadilly Street at an intersection with U.S. Route 11 (US 11) and US 522, and it continues through the east end of the city, along North East Lane, National Avenue, and finally Berryville Avenue. SR 7 exits the city into surrounding Frederick County, where its name changes to Berryville Pike and it becomes a four-lane highway. SR 7 continues across I-81 and then into Clarke County. SR 7 enters Clarke County from Frederick County, crossing Opequon Creek, and continues towards the town of Berryville. Business SR 7 (SR 7 Bus.) splits off just west of Berryville and passes through the town, while the main route bypasses the town to the north. Both routes cross US 340, and SR 7 Bus. rejoins SR 7 just east of the town. SR 7 crosses the Shenandoah River and its name changes to the Harry Flood Byrd Highway. SR 7 crosses the Loudoun–Clarke county line and the Appalachian Trail at the summit of Snickers Gap in the Blue Ridge Mountains. SR 7 descends out of the Blue Ridge Mountains and enters the rural western area of Loudoun County as the Harry Flood Byrd Highway at Snickers Gap. It intersects the northern end of the Snickersville Turnpike, and then it passes just north of the village of Bluemont (formerly Snickersville). Next SR 7 curves just south of Jefferson County, West Virginia. SR 7 becomes a divided, limited-access highway with a speed limit of just west of the town of Round Hill, where another SR 7 Bus. splits off to serve the towns of Round Hill, Purcellville, and Hamilton, while the main road runs outside of the towns as a bypass. SR 7 Bus. rejoins the main road at the interchange with SR 9 in