 At Volney, US 58 turns west, along with Wilson Creek, and SR 16 continues uphill, northward and northwestward past Grant and Troutdale, to its crossing of the Tennessee Valley Divide at Dickey Gap between Hurricane Mountain and Straight Mountain in the Iron Mountains.Soon after crossing the divide, State Route 650, once the alignment of U.S. Route 58, splits off to the west, while SR 16 heads northeast and downhill to Sugar Grove.After a flat area near Sugar Grove, SR 16 again heads uphill, north and northwest across Brushy Mountain and the Appalachian Trail.