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
Hills and mountains of the Isle of Man Hills and mountains of the Isle of Man The Isle of Man is mostly hilly, but has only one summit, Snaefell, classified as a mountain (over 2,000 feet). The south of the island has a small coastal plain around Castletown and Ballasalla but is otherwise hilly. In the south west these hills rise to more prominent peaks, notably South Barrule (483 m), and Cronk ny Arrey Laa (437 m) which drops almost vertically into the sea. A central valley separates the southern hills from the central range which contains the highest peaks. This central range contains 11 out of 12