Consolidating all of the information from the 11 A.T. guidebooks into a small, portable reference, the Appalachian Trail Data Book provides up to date information on distances between major Appalachian Trail shelters, road crossings, and features.. . . . . . . A simple and indispensable resource for A.T. hikers. Updated every fall to deliver the most current trail information. Keyed to ATC Appalachian Trail Maps for ease of use. Information is divided by state. Information on mileage, shelter and campsite locations, towns, water sources, road crossings, and places to resupply. 88 pages. Weight: 6.5 oz. .