Chiusano di San Domenico  Chiusano di San Domenico (Irpino: ) is a town and "comune" in the province of Avellino, Campania, southern Italy. Situated at above sea level, Chiusano is on the western slope of Mount Tuoro. Human presencein Chiusano can be traced to the times of Ancient Rome based on the discovery of coins, pottery, and tombs. During the 11th century the Lombards ruled the area and life in Chiusano centered on a castle that was constructed on nearby Monte Domenico.