Huascarán Huascarán Huascarán () (Quechua: Waskaran) is a mountain in the Peruvian province of Yungay (Ancash Region), situated in the Cordillera Blanca range of the western Andes. The highest southern summit of Huascarán (Huascarán Sur) is the highest point in Peru, the northern part of Andes (north of Lake Titicaca) and in all of the Earth's Tropics. Huascarán is the fourth highest mountain in the Western Hemisphere and South America after Aconcagua, Ojos del Salado, and Monte Pissis. The mountain was named after Huáscar, a 16th-century Inca emperor who was the Sapa Inca of the Inca empire. The mountain has two
Ojos del Salado of the Nazca Plate beneath the South America Plate became increasingly shallower and this caused volcanism to shift from the Maricunga Belt to the Ojos del Salado region. The Paleozoic basement crops out only northwest of Nevado Tres Cruces. Other geologic units in the region are Oligocene sedimentary units and volcanic rocks ranging from Oligocene age to less than 1.5 million years old. The area is part of a tectonic boundary between a volcanically active region north of the boundary and a less volcanically active region south of the boundary, which is also characterized by geographical differences, e.g. the presence