Explore hiking trails around Treppo Ligosullo / Trep Liussûl, Friuli-Venezia Giulia. The best hike near Treppo Ligosullo / Trep Liussûl is SI, 102 Loop, a 6.6 mile loop in . Treppo Ligosullo / Trep Liussûl has population 724.0.