Politically the region is divided into two: the Patagonia Argentina to the east, and the Chilean Patagonia, west. Patagonia covers an area of 1,043,076 km ². While there is general agreement on the exact boundaries or criteria to define them, about 80% of the land belongs to Argentina and 20% in Chile.
Today the northern edge of Patagonia Argentina is considered generally in line with the Colorado and Canyon, from the Argentine Sea Atlantic Ocean to the Andes, but other limits are also considered north and south of that line.
The island of Tierra del Fuego, and sometimes the Falkland Islands, the latter permanently claimed by Argentina, are often included as part of Patagonia.
Meanwhile, the northern boundary of the Chilean Patagonia is usually located within Reloncaví, but there are those who indicate their location would be in the 39 ° S latitude, at the height of Valdivia.
For southern limit Chilean Patagonia is usually set in the Strait of Magellan or be extended to Cape May Hornos.4 The eastern boundary of the Chilean Patagonia is the Andes Mountains and the Pacific Ocean to the west. So this range is the geographical division of Patagonia between the eastern and western, of much greater surface.