The Dolomites, also known as the Dolomite Mountains, Dolomite Alps or Dolomitic Alps, are a mountain range located in northeastern Italy. They form part of the Southern Limestone Alps and extend 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.

Marmolada is the highest mountain of the Dolomites. It lies between the borders of Trentino and Veneto. The Marmolada is an ultra-prominent peak (a mountain summit with a prominence of 1,500 metres (4,900 ft) or more).

The mountain is located about 100 kilometres (62 mi) north-northwest of Venice, from which it can be seen on a clear day. It consists of a ridge running west to east. Towards the south it breaks suddenly into sheer cliffs, forming a rock face several kilometres long. On the north side there is a comparatively flat glacier, the only large glacier in the Dolomites.

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