Chilean Antarctic Territory in the context of "Puerto Williams"

Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, extending along a narrow strip of land between the Andes Mountains and the Pacific Ocean. According to the 2024 census, Chile had an enumerated population of 18.5 million. The country covers a territorial area of 756,102 square kilometers (291,933 sq mi), sharing borders with Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage to the south. It also administers several Pacific islands, including Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island, and claims about 1,250,000 square kilometers (480,000 sq mi) of Antarctica as the Chilean Antarctic Territory. The capital and largest city is Santiago, and the national language is Spanish.

Spain conquered and colonized the region in the mid-16th century, replacing Inca rule; however, they failed to conquer the autonomous tribal Mapuche people who inhabited what is now south-central Chile. Chile emerged as a relatively stable authoritarian republic in the 1830s after their 1818 declaration of independence from Spain. During the 19th century, Chile experienced significant economic and territorial growth, putting an end to Mapuche resistance in the 1880s and gaining its current northern territory in the War of the Pacific (1879–83) by defeating Peru and Bolivia.

The British Antarctic Territory (BAT) is a sector of Antarctica claimed by the United Kingdom as one of its 14 British Overseas Territories, of which it is by far the largest by area. It comprises the region south of 60°S latitude and between longitudes 20°W and 80°W, forming a wedge shape that extends to the South Pole, overlapped by the Antarctic claims of Argentina (Argentine Antarctica) and Chile (Chilean Antarctic Territory). The claim to the region has been suspended since the Antarctic Treaty came into force in 1961.

The territory was formed on 3 March 1962, although the UK's claim to this portion of the Antarctic dates back to letters patent of 1908 and 1917. The area now covered by the Territory includes three regions which, before 1962, were administered by the British as separate dependencies of the Falkland Islands: Graham Land, the South Orkney Islands, and the South Shetland Islands. The United Kingdom's claim to the region has been suspended since the Antarctic Treaty came into force in 1961, Article 4 of which states "No acts or activities taking place while the present Treaty is in force shall constitute a basis for asserting, supporting or denying a claim to territorial sovereignty in Antarctica. No new claim, or enlargement of an existing claim, to territorial sovereignty, shall be asserted while the present Treaty is in force." Most countries do not recognise territorial claims in Antarctica. The United Kingdom has ratified the Antarctic treaty.

75°00′S 49°30′W / 75.000°S 49.500°W / -75.000; -49.500

Argentine Antarctica (Spanish: Antártida Argentina or Sector Antártico Argentino) is an area on Antarctica claimed by Argentina as part of its national territory. It consists of the Antarctic Peninsula and a triangular section extending to the South Pole, delimited by the 25° West and 74° West meridians and the 60° South parallel. This region overlaps with British and Chilean claims in Antarctica. None of these claims have widespread international recognition.

Insular Chile, also called Las islas Esporádicas, or 'the Sporadic Islands', is a scattered group of oceanic islands of volcanic origin located in the South Pacific, and which are under the sovereignty of Chile. The islands lie on the Nazca Plate, separate from the South American continental plate.

Despite not being continental islands, the Juan Fernández Islands and the Desventuradas Islands are considered "Continental Insular Chile"; Salas y Gómez Island and Easter Island (both geographically situated in Polynesia) form the zone known as "Oceanic Insular Chile". All of insular Chile is administrated as part of the Valparaíso Region.

Antártica is a Chilean commune in Antártica Chilena Province, Magallanes y la Antártica Chilena Region, which covers all the Chilean Antarctic Territory (the territory in Antarctica claimed by Chile). It ranges from 53°W to 90°W and from the South Pole to 60°S, overlapping the Argentine and British Antarctic claims, and is the largest and least populated commune in Chile, being over 25 times the size of the next largest commune, Natales. It is administered by the Cabo de Hornos municipality in the South American mainland.

Antártica was created on 11 July 1961, and was dependent on the Magallanes Province until 1975, when the Antártica Chilena Province was created, making it dependent administratively on Puerto Williams, the province capital.

The Magallanes Region (locally [maɣaˈʝanes]), officially the Magallanes y la Antártica Chilena Region (Spanish: Región de Magallanes y de la Antártica Chilena) or Magallanes and the Chilean Antarctica Region in English, is one of Chile's 16 first order administrative divisions. It is the southernmost, largest, and second least populated region of Chile. It comprises four provinces: Última Esperanza, Magallanes, Tierra del Fuego, and Antártica Chilena. The region takes its name from the Strait of Magellan which runs through it, which was in turn named after Ferdinand Magellan, the leader of the European expedition that discovered it.

Magallanes's geographical features include Torres del Paine, Cape Horn, Tierra del Fuego island, and the Strait of Magellan. It also includes the Antarctic territory claimed by Chile. Despite its large area, much of the land in the region is rugged or closed off for sheep farming, and is unsuitable for settlement. 80% of the population lives in the capital Punta Arenas, a major market city and one of the main hubs for Antarctic exploration.