Tierra del Fuego, Antarctica, and South Atlantic Islands (Spanish: Provincia de Tierra del Fuego, Antártida e Islas del Atlántico Sur) is a province entirely separated by the Strait of Magellan from mainland Argentina on the Isla Grande of Tierra del Fuego, which it shares with Chile to the west. Besides the Argentine part of Tierra del Fuego, the province encompasses Argentine claims to Antarctica, and to the Falkland Islands, South Georgia and the South Sandwich Islands, which are administered by the United Kingdom. The province is usually called just "Tierra del Fuego" partly because it is mostly comprised of that island's eastern half and partly because is just shorter.
The province of Tierra del Fuego benefits from certain tax benefits that support industry and immigration to less populated areas. In addition, it is one of the most prosperous provinces in Argentina, in terms of standard of living.