South Tyrol, also known by its Italian name Alto Adige (, Italian: "Alto Adige", Southern Bavarian: "Sidtiroul"), is an autonomous province in northern Italy. Together with the province of Trento, it makes up the region of Trentino-Alto Adige/Südtirol. The province has an area of . About 511,750 people live there (2011). The capital of the province is the city of Bolzano. The borders are Graubünden and Lombardia in the west, Tyrol and Salzburg in the north, Trentino and Veneto in the south.