Volume 1: "Contains guidebook information on mountain biking in Western North Carolina and the Smokies" --provided by cataloger. Volume 2: "62 of the best mountain bike routes in western North Carolina's Pisgah National Forest. Includes detailed maps and directions, estimated riding times, elevation gain, directions to the trailhead, and guidelines for riding on public lands." --provided by Amazon. Volume 3: "Contains guidebook information on North Georgia" --provided by cataloger. Volume 4: "Contains guidebook information on mountain biking in East Tennessee" --provided by cataloger. Volume 4a: "East Tennessee's accessibility, diverse terrain, and nearly year-round cycling season make it one of the hottest mountain biking destinations in the South. Now completely revised and expanded, this guide covers 56 mountain bike trails in east Tennessee, including trails in the Cherokee National Forest, and trail networks on public lands from Chattanooga to Kingsport and from the Big South Fork to the Ocoee River." --provided by Amazon.