Explore 72 of the best railtrails and multiuse pathways across Pennsylvania All across the country unused railroad corridors have been converted into public multiuse trails. Here the experts from RailstoTrails Conservancy present the best of these railtrails as well as other multiuse pathways in Pennsylvania. Take a cultural journey along Pittsburghs Three Rivers Heritage Trail or enjoy a speedy outandback on the Greene River Trail. Explore Harrisburg via the Capital Area Greenbelt or expe