The Adamello Brenta Nature Park (620.51 sq km) is the largest protected area in Trentino. Established in 1967, it extends into western Trentino and includes the Adamello and Brenta mountain ranges. It is crossed by the Val Rendena and surrounded by the valleys of Non, di Sole and Giudicarie. The altitude ranges from 477m to 3558m. In 1967 the Autonomous Province of Trento established the two provincial parks, Adamello Brenta and Paneveggio Pale di San Martino.