The Dolomites (Italian: Dolomiti; German: Dolomiten; Friulian: Dolomitis) are a section of the Alps. They are located for the most part in the province of Belluno, the rest in the provinces of Bolzano-Bozen and Trento (all in north-eastern Italy). Conventionally they extend from the Adige river in the west to the Piave valley (Pieve di Cadore) in the east. The northern and southern borders are defined by the Puster Valley (Val Pusteria) and the Sugana Valley (Val Sugana). But the Dolomites spread also over the Piave river (Dolomiti d'Oltrepiave) to the east; and far away over the Adige river to the west is the Brenta Group (Western Dolomites); there is also another smaller group called Piccole Dolomiti (Small Dolomites) located between the Provinces of Trento and Vicenza.
One national park and many other regional parks are located in the Dolomites.
During the First World War the line between the Italian and Austro-Hungarian forces ran through the Dolomites. There are open air war museums at Cinque Torri (Five Towers) and Mount Lagazuoi. Many people visit the Dolomites to climb the Vie ferrate. These are protected paths which were first created in the Dolomites during the First World War. A number of long distance footpaths run across the Dolomites, which are called "Alte vie" (i.e., high paths). Such long trails, which are numbered from 1 to 8, require at least a week to be walked through and are served by numerous "Rifugi" (huts). The first and, perhaps, most renowned is the Alta Via 1.
A tourist mecca, the Dolomites are famous for skiing in the winter months and mountain climbing, daily excursions, climbing and Base Jumping, as well as paragliding and hang gliding in summer and late spring/early autumn.[citation needed] Free climbing has been a tradition in the Dolomites since 1887, when 17-year-old Georg Winkler soloed the first ascent of the pinnacle Die Vajolettürme. [1] The main centres include: Rocca Pietore alongside the Marmolada glacier, which lies on the border of the Trentino-Alto Adige and Veneto regions, the small towns of Alleghe, Falcade, Auronzo, Cortina d'Ampezzo, and the villages of Arabba, Ortisei and San Martino di Castrozza, as well as the whole of the Fassa, Gardena and Badia Valleys.