The Municipality of Cortina d'Ampezzo stretches over 254 square kilometres and is second largest in north-east Italy. It comprises a vast diamond-shaped mountain area, marked by three valley axes converging in a central bowl of exceptional breadth, with the major north-south axis of 23.5 kilometres (from Croda del Becco to Rocchetta di Prendèra) and the minor east-west axis of 21 kilometres (from Somerìda to Lake of Valparola. The lowest point of the valley (1,044 metres) lies at the intersection of the Boite river at the border with the Municipality of San Vito di Cadore. The highest point culminates on the top of Tofana di Mezzo, at 3,244 metres; therefore the total difference is 2,200 metres.
The orography of the Ampezzo Dolomites is complex and highly articulated, but it can be approximately divided in 8 main massifs, of which Tofana is the only one lying entirely in the Ampezzo area, whereas the other seven feature an inner slope overlooking the valley and an outer slope belonging to other catchment basins and valley areas.
Ten peaks exceed three thousand metres of altitude: three on Tofana (Ròzes - 3,225 m., di Mezzo – 3,244 m. and De Inze – 3,238 m.), two on Sorapìs (Principale – 3,205 m. and Fopa de Matia – 3,191 m.), four on Cristallo (Principale – 3,221 m., Piz Popéna – 3,152 m., di Mezzo – 3,154 m., Cristallino – 3,008 m.) and Croda Rossa – 3,146 m.
The other massifs of considerable orographic value, but lower in altitude, are Cime di Fanes – Lagazuoi, Col Bechéi – Lavinòres, Averau – Nuvolau and Croda da Lago – Rocchetta