The highest point in Corvo is Mont Grosso, at 770m (2530 ft). The island was formed by the collapse of a volcano to form a caldera. Known on the island as "Caldeirão," the caldera is 300 m (980 ft) deep and has a perimeter of 3.7 km (2.3 mi).
The island was discovered in 1452 by Diogo Teive.