The Park of Monte Cucco is a Protected Area, covering a land surface of 10,480 hectares. It includes within it the municipalities of Costacciaro, Fossato di Vico, Scheggia-Pascelupo and Sigillo. The area is confined by the Apennine Ridge, including Monte Cucco (1566 m), by the Sentino and Chiascio Rivers and by the course of the historic Via Flaminia.

This region is rich in fossil deposits, and archeological remains related to the ancient Roman settlements. The Park is famous for its subterranean rivers and mineral-water springs, for its clear streams, great beech-woods and its limestone cave system, untouched by mass tourism.