The relief of Spain is composed mainly of a central plateau surrounded by mountain ranges. The plateau is divided into northern and southern subplateaus by the Central System mountain range. Other important mountain ranges that surround the plateau include the Cantabrian Range, Iberian System, and Sierra Morena. Farther from the plateau are mountain ranges like the Pyrenees, Basque Mountains, and Betic Chain which is divided into the Penibetic and Subbetic Cordilleras. The major depressions in Spain are the Ebro Depression between several mountain ranges and coastal areas, and the Guadalquivir Depression between the Sierra Morena and Atlantic Ocean. Spain's highest peaks are Teide volcano in Tenerife, followed