The official guide to 229 miles of the Appalachian Trail from the New Jersey line at the Delaware Water Gap (I-80) southwest to the central Maryland border at Pen Mar (Mason-Dixon Line). This guidebook, published by the Kaystone Trails Association, includes photographs and extensive historical and natural-history information, along with trail-route descriptions in both directions. The three northernmost maps have scales of 1:63,360. The map from Cumberland Valley (Carlisle area) to Caledonia State Park, 1:50,000; the southernmost, 1:55,780. All five maps have elevation profiles, 20-foot contour intervals and elevation profiles.