Chile is normally described as consisting of three geographical zones.7 The first of these, known as continental Chile, comprises a long and narrow strip of land on the west coast of the Southern Cone that extends between the parallels 17 ° 29'57 "S and 56 ° 32'12 "S, mostly from the southeastern shore of the Pacific Ocean to the Andes mountain range. It reaches a length of 4270 km, 27 a maximum width of 445 km in the 52 ° 21 'S, at the height of the Magallanes strait, and a minimum width of 90 km in the 31 ° 37' S, between Amolanas point and step of Casa de Piedra.7 It borders Peru to the north, Bolivia to the northeast and Argentina to the east, totaling 6,339 km of land borders, 8 and the Drake Passage to the south. The second, called Chile insular, corresponds to a set of islands of volcanic origin in the South Pacific Ocean: the Juan Fernández archipelago and the Desventuradas islands, belonging to South America, Salas and Gómez Island and Easter Island, geographically located in the Polynesia. The third, called the Chilean Antarctic Territory, 28 is an area of ​​Antarctica or Antarctica29 of 1,250,257.6 km² between meridians 53 ° O and 90 ° W on which Chile claims sovereignty, extending its southern limit to the South Pole. This claim is suspended as stipulated by the Antarctic Treaty, 30 of which Chile is a signatory, without its signature constituting a waiver. Due to its presence in America, Oceania and Antarctica, Chile defines itself as a centralontinental country.