Stelvio National Park is a national park in northeast Italy, established in 1935. The park is the fourth largest in Italy and covers part of two regions: Trentino-Alto Adige/Südtirol and Lombardia, in 24 municipalities. Stelvio National Park has borders with the Swiss National Park, Adamello Brenta Natural Park, and Adamello Regional Park. Together, these parks comprise 400000 ha of protected natural environment. The park includes an extensive territory of valleys and high mountains, ranging from 650 m to 3905 m in height.