Pulicchio di Gravina, near Gravina in Puglia (Bari Province - Apulia)

In Apulia there are a few huge dolines: the Dolina Pozzatina, in the Gargano area, and the Pulo di Altamura and the Pulicchio di Gravina on the Murge hills. Their perimeters span several hundreds of meters, their depth is some 100 meters. These large dolines originated after the collapse of huge cave systems excavated by karst processes.

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