The Azores, officially the Autonomous Region of the Azores, is an autonomous region of Portugal, in the Atlantic Ocean about 1,400 km (870 miles) west of mainland Portugal. Together with Madeira, it is one of the two autonomous regions of Portugal and a special territory of the European Union. It is the westernmost point and region of Portugal.
The Azores is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atlantic Ocean.There are nine major Azorean islands and an islet cluster, in three main groups. These are Flores and Corvo to the west; Graciosa, Terceira, São Jorge, Pico, and Faial in the centre; and São Miguel, Santa Maria, and the Formigas islets to the east. They extend for more than 600 km (370 mi) and lie in a northwest–southeast direction. All the islands have volcanic origins, although some, such as Santa Maria, have had no recorded activity in the time since the islands were settled several centuries ago. Mount Pico on the island of Pico is the highest point in Portugal, at 2,351 m (7,713 ft). If measured from their base at the bottom of the ocean to their peaks, the Azores are among the tallest mountains on the planet. The Azores are located at the seismically active Azores triple junction plate boundary where the North American plate, Eurasian plate and Nubian plate meet.