Terrace Mountain Trail (PA)
The Terrace Mountain Trail runs 25 miles from the south end of Lake Raystown (just outside of Saxton, Pennsylvania) to the north end, finishing above the man-made dam which created the lake. At times, the trail takes you right along the water, where I have seen Bald Eagles fishing, or you may find yourself high above the lake with a panoramic view of the serpentine shape of the water. This is an aesthetic line for a trail, traveling the length of the lake, and gives you a visible reminder of the distance you are covering.