Tierra del Fuego is an archipelago on the southern tip of South America. Tierra del Fuego is separated from the mainland by the Strait of Magellan. In the south, the Beagle Canal separates it from the Chilean islands.
While exploring the Magellan Strait in 1520, Magellan and his men did not find any settlements in the north, but in the south of the strait they saw many fires at night from the ship. The captain general Magellan called the country “Tierra del Fuego”.
(Source: Wikipedia)