Geology of Chile the Taitao Peninsula, the Peru–Chile Trench subduction zone is the boundary between the South American and Nazca Plates. At Taitao, the Chile Triple Junction and the Nazca Plate subduct the South American Plate. In Norte Grande the mountains form a series of plateaus, such as Puna de Atacama and the Altiplano. At a south latitude of 27 degrees, Chile's highest mountain (Ojos del Salado) reaches a height of . Below 42 degrees south, the Andes split into a fjord landscape and the highest mountain is Monte San Lorenzo at . As the mountains ebb, the snow line lowers; in the
Ogilvie Mountains granite peaks, are: Ogilvie Mountains The Ogilvie Mountains are a mountain range in the Yukon Territory of northwestern Canada. Geologically they are part of the Yukon Ranges, in the upper Laramide Belt of the North American Cordillera. The range lies north of Dawson City, and is crossed by the Dempster Highway. The area was first surveyed by William Ogilvie and the range subsequently named after him. The best known mountain peaks of the Ogilvie Mountains are located within Tombstone Territorial Park . The highest mountain within the range is Mount Frank Rae, at in elevation. The range's most familiar mountains,