Lagorai Chain / Renón

This porphyry zone, extending south as far as the Trento region and reaching its highest point in the Lagorai chain (Cima de Cece, 2,772m/9,148ft) near Predazzo, is cut by deep valleys, notably the Val d'Ega (Eggental) at Bolzano and the Tires valley (Tierser Tal). The infertile porphyry has been covered, particularly on the Renón (Ritten) by old moraines, which have been eroded by heavy rain, leaving the famous "earth pillars" capped by their protective boulders.