Corisco

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Corisco, or Mandj, is a small island of Equatorial Guinea, located 29 km southwest of the Rio Muni estuary that defines the border with Gabon. Corisco, whose name derives from the Portuguese word for lightning, has an area of just 14 km², and its highest point is 35 meters above the sea.

Corisco was acquired by Spain in 1843. In the early part of the 20th century it was part of the administration of Elobey, Annobon, and Corisco, and postage stamps were issued under that name. It became an integral part of Equatorial Guinea upon independence.

Corisco and the surrounding waters of Corisco Bay have become of interest in recent years for their oil prospects. The area is disputed with Gabon because of the perceived value of the oil.