A sharp pyramid-shaped mountain peak, formed when several cirques surround a single high mountain, is called a pyramidal peak.
A pyramidal peak, (also called glacial horn) is a sharply, pointed, pyramid-shaped mountain peak which results from the cirque (bowl-shaped basins) erosion caused by many glaciers that are carved away from a central point. The pyramidal peak has a feature of a sharp-edged summit, and steep sloping sides. Examples of pyramidal peak include; Mount Aspiring in New Zealand, Pilot Peak in Wyoming, United States and Nevado Las Agujas in Los Ríos, Chile.