The Gran Sasso National Park and Monti of the Laga, established in 1991, is one of the largest in Italy. It extends over the majority in Abruzzo and to a lesser extent in the adjacent areas of Lazio (Rieti) and The Marches (Ascoli Piceno). The park contains three mountain ranges – the chain of the Gran Sasso of Italy, the massif of Laga, the Mountains Gemelli – and is characterized by the presence of the highest peak of Corno Grande, which reaches 2912 meters. In this chain is also present the only glacier in the Apennines, the Calderone, the southernmost of Europe. In the Gran Sasso Park we can find important peaks, steep slopes, and a host of high-altitude routes from where it is possible, in a clear day, see the Adriatic Sea, the Tyrrhenian Sea and a large part of central Italy. Here, you can admire some species of flowers such as primroses, the Apennine edelweiss and yellow adonide, a unique species in Italy. With regard to the fauna, the Park is the kingdom of the Abruzzo chamois; live here also deers and the Apennine wolf, as well as many rare birds of prey such as the golden eagle, the peregrine falcon and the eagle owl. To the north the Gran Sasso is joined by a very different mountains: the Laga Massif with peaks formed by sandstone rocks. In these mountains, several rivers flowing through forests and valleys forming very scenic waterfalls.