The Dolomites are a mountain range located in north-eastern Italy. It is a part of Southern Limestone Alps and extends from the River Adige in the west to the Piave Valley in the east.
The northern and southern borders are defined by the Puster Valley and the Sugana Valley. The Dolomites are nearly equally shared between the provinces of Belluno, South Tyrol and Trentino.
One national park and many other regional parks are located in the Dolomites. In August 2009, the Dolomites were declared a natural heritage site by UNESCO.