The Camaldoli hill (Italian: Collina dei Camaldoli) is the highest point in the city of Naples, with a maximum altitude of 457 meters above sea level.[1] It extends between the municipality of Naples and the municipalities of Marano di Napoli and Quarto. The hill is estimated to be about 35,000 years old and to have formed from violent volcanic eruptions in the Phlegraean Fields.[citation needed]