Tierra del Fuego—literally Fire Land, formerly Isla de Xativa and also known as Isla Grande de Tierra del Fuego—is an island near the southern tip of South America from which it is separated by the Strait of Magellan. The western portion of the island (29,484.7 km² and 61.43% of the island) is in Chile (Province of Tierra del Fuego and Antártica Chilena Province), while the eastern portion (18,507.3 km² and 38.57%) is in Argentina (Tierra del Fuego Province). It forms the major landmass in an extended group of islands or archipelago also known as Tierra del Fuego.