On September 12, 2015, the Keystone Trails Association will sponsor the seventh annual Susquehanna Super Hike & Ultra Trail Run, a trail challenge event for adventurous trail runners and hikers on the wild river hills of the lower Susquehanna Gorge. This year, participants can choose between a 50K "Ultra Trail Run" and a 25K "Super Hike"! Hikers and trail runners are invited to register for the length best suited for their fitness level and interest. Both events follow the same trails, with the 25K participants starting later and at a different location than the 50K participants. To learn more or to register, click here.