Los Cuernos from Lago Pehoe (by twiga269 ॐ FreeTIBET)
Torres del Paine National Park (Parque Nacional Torres del Paine) is a national park encompassing mountains, a glacier, a lake, and river-rich areas in southern Chilean Patagonia. The Cordillera del Paine is the centerpiece of the park. It lies in a transition area between the Magellanic subpolar forests and the Patagonian Steppes. The park is located 112 km (70 mi) north of Puerto Natales and 312 km (194 mi) north of Punta Arenas. Bernardo O’Higgins National Park is its neighbour to the west, while Los Glaciares National Park is located to the north in Argentine territory.
Much of the geology of the Paine Massif area consists of Cretaceous sedimentary rocks that have been intruded by a Miocene-aged laccolith. Orogenic and erosional processes have shaped the present-day topography, glacial erosion being the main one responsible for the sculpturing of the massif in the last tens of thousands of years. A good example of the latter are the Cuernos del Paine, whose central bands of exposed granite strongly contrast with the dark aspect of their tops, which are remnants of a heavily eroded sedimentary stratum. In the case of Las Torres, what once was their overlying sedimentary rock layer has been completely eroded away, leaving behind the more resistant granite.