Incas in Central Chile and Uspallata Pass (32º50' S). This attack from the east would have been done in order to avoid the more direct but inhospitable routes crossing the Atacama Desert. José Toribio Medina claimed in 1882 that the Incas entered Central Chile from both north and east. Troops of the Inca Empire are reported to have reached Maule River and had a battle with Mapuches from Maule River and Itata River there. After securing the regions of northern Chile, Copiapó, Coquimbo, Aconcagua and the Maipo Valley around what is now Santiago, the Inca general Sinchiruca sent 20,000 men down to the valley
Patagonian Desert Patagonian Desert The Patagonian Desert, also known as the Patagonia Desert, Patagonian Steppe, or Magellanic Steppe, is the largest desert in Argentina and is the 8th largest desert in the world by area, occupying 673,000 square kilometers (260,000 mi). It is located primarily in Argentina with small parts in Chile and is bounded by the Andes, to its west, and the Atlantic Ocean to its east, in the region of Patagonia, southern Argentina. To the north the desert grades into the Cuyo Region and the Pampas. The central parts of the steppe are dominated by shrubby and herbaceous plant species