The Pollino National Park is situated on the border between Basilicata and Calabria and is the largest protected area of the new institution in Italy. The Orsomarso Mountains, instead form the southern part of the Park and are in some ways a world of its own, marginal and wild. The torrent Sinni runs through the lower part of the massif in Basilicata, and is characterized by eroded sediment from the upper part of the massif. The slopes of the valleys that are present here are marked by gullies, erosion furrows etched by rampant waters. While the Calabrian side is crossed by the river Raganello, digging their own course between impressive and spectacular gorges. Symbol of the park is the Bosnian Pine, very rare species in Italy. At an altitude of 800 – 1000 meters it has spread the beech which extends up to higher altitudes. Orchid blooms are observed especially in the spring, along with those of violets, gentians, bluebells, peonies and in summer, the rare red lily, as well as countless species of medicinal and aromatic plants. As for the fauna, it represents the most important animals of the southern part of the Apennines. They were estimated about 30-50 wolf specimens; On the Orsomarso Mountains there is the roe deer while along some rivers still lives the otter. There are many species of birds of prey flying over the skies of the park including the golden eagle, the eagle owl, the peregrine falcon and the raven.