Argentina–Chile border

With a length of 5,308 kilometres (3,298 mi),[1] it separates Argentina from Chile along the Andes and on the islands of Tierra del Fuego.

The border extends south until reaching the sea at the same place the Strait of Magellan meets the Atlantic Ocean.

Further south the border on the Isla Grande de Tierra del Fuego follows a meridian separating the island into two.

On August 25, 1997, Chile signed and ratified the United Nations Convention on the Law of the Sea, and it entered into force for the country on September 24, 1997.

[18][19][20][21][22][23][24][25] In February 2022, Chile submitted its second partial presentation regarding the Western Continental Shelf of the Chilean Antarctic Territory.

[26][27] In August of the same year, Chile made the oral presentations of both partial submissions during the 55th Session of the Commission on the Limits of the Continental Shelf at the United Nations in New York.

[28][3] In 2023, Chile, through SHOA, made available an illustrative graphic showing all the maritime areas claimed by the country, which was once again rejected by Argentina.