Drake Passage in the context of "Antarctic Peninsula"

South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern subregion of the Americas.

South America is bordered on the west by the Pacific Ocean, on the north and east by the Atlantic Ocean, and to the south by the Drake Passage; North America, the Caribbean Sea lying to the northwest, and the Antarctic Circle, Antarctica, and the Antarctic Peninsula to the south.

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 South Shetland Islands are a group of Antarctic islands located in the Drake Passage with a total area of 3,687 km (1,424 sq mi). They lie about 120 kilometres (65 nautical miles) north of the Antarctic Peninsula, and between 430 and 900 km (230 and 485 nmi) southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories. According to British government language on the topic, "the whole of Antarctica is protected in the interests of peace and science."

The islands have been claimed by three countries, beginning with the United Kingdom since 1908 (since 1962 as part of the equally unrecognized British Antarctic Territory). The islands are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province), and by Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province).

Patagonia (Spanish pronunciation: [pataˈɣonja]) is a geographical region in southern South America that spans parts of Argentina and Chile. It includes the southern portion of the Andes mountain range, featuring lakes, fjords, temperate rainforests, and glaciers in the west, and deserts, tablelands, and steppes toward the east. The region is bounded by the Pacific Ocean to the west, the Atlantic Ocean to the east, and several waterways that connect them, including the Strait of Magellan, the Beagle Channel, and the Drake Passage to the south.

The northern limit of the region is not precisely defined; the Colorado and Barrancas rivers, which run from the Andes to the Atlantic, are commonly considered the northern limit of Argentine Patagonia; on this basis the extent of Patagonia could be defined as the provinces of Neuquén, Río Negro, Chubut and Santa Cruz, together with Patagones Partido in the far south of Buenos Aires Province. The archipelago of Tierra del Fuego is sometimes considered part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in Araucanía Region.

Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of 2,780,085 km (1,073,397 sq mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. Argentina shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, the Southern Patagonian Ice Field, and a part of Antarctica.

The earliest recorded human presence in modern-day Argentina dates back to the Paleolithic period. The Inca Empire expanded to the northwest of the country in pre-Columbian times. The modern country has its roots in Spanish colonisation of the region during the 16th century. Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The Argentine Declaration of Independence on July 9 of 1816 and the Argentine War of Independence (1810–1825) were followed by an extended civil war that lasted until 1880, culminating in the country's reorganisation as a federation. The country thereafter enjoyed relative peace and stability, with several subsequent waves of European immigration, mainly of Italians and Spaniards, influencing its culture and demography.

The Pacific plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At 103 million km (40 million sq mi), it is the largest tectonic plate.

The plate first came into existence as a microplate 190 million years ago, at the triple junction between the Farallon, Phoenix, and Izanagi plates. The Pacific plate subsequently grew to where it underlies most of the Pacific Ocean basin. This reduced the Farallon plate to a few remnants along the west coast of the Americas and the Phoenix plate to a small remnant near the Drake Passage, and destroyed the Izanagi plate by subduction under Asia.

Cape Horn (Spanish: Cabo de Hornos, pronounced [ˈkaβo ðe ˈoɾnos]) is the southernmost headland of the Tierra del Fuego archipelago of southern Chile, and is located on the small Hornos Island. Although not the most southerly point of South America (which is Águila Islet), Cape Horn marks the northern boundary of the Drake Passage and marks where the Atlantic and Pacific Oceans meet.

Cape Horn was identified by mariners and first rounded in 1616 by the Dutchmen Willem Schouten and Jacob Le Maire, who named it Kaap Hoorn (pronunciation) after the city of Hoorn in the Netherlands. For decades, Cape Horn was a major milestone on the clipper route, by which sailing ships carried trade around the world. The waters around Cape Horn are particularly hazardous, owing to strong winds, large waves, strong currents and icebergs.