The Michigan Trail Atlas is the only comprehensive guide of non-motorized trails for Michigan. The Atlas covers hiking, x-c skiing, mountain and road biking, in-line skating and nature trails. Over 680 trail systems, 789 pgs, 11 " x 8.5" & 4.5 lbs!. The Atlas covers trails in every corner of the state from Monroe County near Lake Erie to Keweenaw County in the Upper Peninsula and hundreds of places in between.