A pyramidal peak is formed where three or more corries and arêtes meet. Glaciers erode backwards towards each other, carving out the rocks by plucking and abrasion. Freeze thaw weathers the top ...

Rising to an impressive height of 1,310 feet (400 meters), Cerro El Cono is an isolated and sharply pyramidal peak that stands out against the flat landscape of the Peruvian Amazon rainforest. On ...