Although Old Rag Mountain is within the boundaries of Shenandoah National Park, most people approach it from the park's eastern boundary. Follow these directions to get to the trailhead: From Sperryville, Route 211: Take Route 522 south for .8 mile. Turn right onto Route 231 and go 8 miles. Turn right onto Route 601 and follow the signs to the parking area (approximately 3 miles).