 Heading north, US 191 is a divided highway for about until it arrives in Clifton, the start of the road's designation as the "Coronado Trail Scenic Road" (both an Arizona Scenic Route and a National Scenic Byway).This scenic road approximates the route taken by Francisco Vázquez de Coronado between 1540 and 1542.At the intersection with Zorrilla Street in Clifton, the US 191 designation temporarily ends and the road continues as US 191 Temporary through the Morenci mine .