Cristallo Cristallo is one of the great mountain massifs of the Italian Dolomites, rising immediately northeast of Cortina d’Ampezzo in Veneto. Its highest summit, Monte Cristallo, reaches 3,221 meters (10,568 feet) and towers over the Ampezzo Valley in a spectacular collection of vertical walls, deeply cut gullies, narrow ridges, and pale Dolomite towers. The Cristallo …