SAINT HELENA

island and British colony in the South Atlantic Ocean, 1,200 miles (1,950 km) west of the southwestern coast of Africa. St. Helena has an area of 47 square miles (122 square km), an extreme length (southwest-northeast) of 10.5 miles (17 km), and an extreme breadth of 6.5 miles (10 km). The capital and port is Jamestown. The island of Ascension and the island group of Tristan da Cunha (qq.v.) are dependencies of St. Helena.