Maciço Montanhoso Central

The whole central range above 1,400 m, about 8,200 hectares classified a Natural Monument. Two blocks make it up: to the east the island's highest peaks, Pico Ruivo (1,862 m) and Pico do Areeiro (1,818 m); to the west the high points of Paul da Serra, Pico Ruivo do Paul (1,640 m) and Bica da Cana (1,620 m). The ragged relief comes from the differential erosion of water on pyroclastic rock. It is also a geological and high-altitude vegetation reserve, and the only known nesting place of Zino's petrel.