Subregion
Northern South Atlantic
Saint Helena and Ascension Island are isolated volcanic tropical islands in the South Atlantic Ocean. Saint Helena is four thousand kilometers (twenty-five hundred miles) east of Rio de Janeiro and nineteen hundred and fifty kilometers (twelve hundred and ten miles) west of the Cunene River, which marks the border between Namibia and Angola in southwestern Africa.
Ascension Island, located 7°56' south of the Equator in the South Atlantic Ocean, is about sixteen hundred kilometers (one thousand miles) from the coast of Africa and two thousand two hundred and fifty kilometers (fourteen hundred miles) from the coast of Brazil, roughly midway between the horn of South America and Africa.
Both islands are governed as part of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha, together with Tristand da Cunha and Gough Islands.
