Patagonia is a geographic zone, splatted politically between Chile and Argentina, and between the Pacific and Atlantic oceans, going through Andean Cordillera and Pampa; on barely more than a million square kilometers.
Road 40 goes through the country, going along the Andean Cordillera for 5301 km. Kilometer 0 of the road used to be right in its center, in Chaos Malala, that was equidistant from Ushuaia to La Quiaca. But the pavement of the road has altered the route, and the way kilometers are counted. However, the memory of this center still has its monument in the city of Chaos Malay!