Incorporated in 1900, Round Hill lies at the foothills of the Blue Ridge mountains in historic and scenic western Loudoun County at the crossroads of Virginia routes 7 and 719. Round Hill was named for a 910 foot high hill, approximately two miles southwest of the town center, which was used by both Union and Confederate troops as a signal post during the Civil War. From 1875 to 1896, Round Hill was the terminus of the Washington & Old Dominion train line which carried tourists away from the unhealthy summer time environs of late nineteen century Washington, DC. Many of the older homes once served as inns and boarding houses in order to accommodate this seasonal migration. While there is no train today, Round Hill is still easily accessible via Virginia Route 7. Located only 45 miles from Washington, DC, it is still a desirable get away destination due to its close proximity to the Shenandoah River (7 miles), Shenandoah National Park (30 miles), the Appalachian Trail (4 miles), Harpers Ferry (15 miles), the Chesapeake & Ohio Canal Tow Path (12 miles), the Washington & Old Dominion Bike Trail (3 miles), and numerous other seasonal activities.

Source: http://www.roundhillva.org/Default.asp?Page=21