Shelter Rock, Old Osseo Trail - Shelter rock is a large boulder on the side of the old Osseo Trail in Lincoln, New Hampshire. Cut in the early 1900s, this section of the Osseo Trail began near the East Branch & Lincoln Railroad’s logging Camp 3. It traveled up through the Clear Brook drainage to Osseo Peak (Whaleback Mountain) and then on to Mount Flume. This large boulder is an interesting feature of the trail...[Continue reading] ...