Section 12 of the TransAm Trail begins in Christiansburg. Most of the roads through the Appalachians of central Virginia are narrow. After the town of Vesuvius, there is a four-mile climb onto the Blue Ridge Parkway. The hills continue along the Parkway. No commercial traffic is allowed and the speed limit of 45 mph is strictly enforced. There are, however, no shoulders and there are a great number of recreational vehicles. After leaving...