The Mount Subasio Park is a protected nature area of the Umbria Region established in 1995. It extends into the territory of 4 boroughs in the province of Perugia: Assisi, Valtopina, Spello and Nocera Umbra. The interesting Karst formations create an extremely fascinating landscape. The "mystical" environment at the heart of the Umbra valley, home of the Franciscan order. The mountain separates but also links, as a natural setting, the historic centers such as Assisi, Spello, Valtopina and Nocera Umbra as a unifying element of the landscape. History, nature and culture merge in the Subasio area and Assisi, whose historical nucleus is in the Park, and is the natural gateway.