mountain range in Palermo provincia, northwest-central Sicily. The range extends for 30 miles (48 km) between the Torto River and the Nebrodi Mountains. Of limestone formation, its highest peaks are Antenna Peak, 6,480 feet (1,975 m), and Carbonara Peak, 6,493 feet (1,979 m). The Madonie is the source of several rivers and is known for its underground drainage system, which provides drinking water for the city of Palermo.