 The ridge reaches its greatest elevation, , at the peak of Mill Mountain, on the border between Hardy County, West Virginia, and Shenandoah County, Virginia, in the George Washington National Forest.The mountain is crossed by U.S. Route 48 and West Virginia and Virginia routes 55 between Wardensville, West Virginia, and Strasburg, Virginia.According to the Geographic Names Information System, Great North Mountain has been known by the following names