Argentina–Chile border
The Argentina–Chile border is the longest international border of South America and the third longest in the world after the Canada–United States border and the Kazakhstan–Russia border. With a length of, it separates Argentina from Chile along the Andes and on the islands of Tierra del Fuego. However, there are some border disputes, particularly around the Southern Patagonian Ice Field.Plot
The northern end of the border is a tripoint it forms with those at the Argentina–Bolivia border and the Bolivia-Chile border in Atacama desert. It extends south to the Strait of Magellan and ends on Isla Grande de Tierra del Fuego. It separates the island into two to its coast a few kilometers southwest of Ushuaia.
In November 1984 in the southern border area is finally established after long negotiations and mediation of John Paul II by the Treaty of Peace and Friendship of 1984 between Chile and Argentina, a perpetual treaty, signed at the Vatican by representatives of both countries.
On 16 December 1998, an agreement between Argentina and Chile was signed to set the border line from Mount Fitz Roy and Mount Daudet and finish with the historical dispute. However both countries didn't agree in the section between Mount Fitz Roy and Mount Murallón, and the border is still pending to be defined.
The city of Mendoza, in Argentina, is one of the largest cities located near the border.