 The sloping hills region have a minimum height of 50 m above sea level.In the north of the city of Cilegon there is a hill called Mount Gede that has an altitude of 553 m above sea level, while there are hills in Serang Regency, precisely in southern region of the regency at the Mancak District and the Waringin Kurung District.The area at the southern part of the Pandeglang Regency are also mostly hilly.