The park covers 450 hectares in the north of Campiglia Marittima and it shows history of mining and metallurgical cycle from the Etruscan era to the present day. The remains of Rocca San Silvestro, a fortified borough built by the della Gherardesca family in the 10th-11th centuries, represent the heart of the park. Lanzi-Temperino Tunnel, where visitors on board a train can discover the journey of the minerals, and Temperino Mine, where evolution of the techniques used to extract minerals is retraced, are as well noteworthy.