Its most spectacular feature is a volcanic crater (or caldera, "caldeira" in Portuguese) that is about wide, with a border ("bordeira" in Portuguese) that is about high. The crater has a slit in its eastern wall, and a large peak like a volcanic cone rises in its center that. The central cone is the highest point of the island (2829 m) and its peak is about 100 m higher than the "bordeira" that surrounds the crater.