Pyramidal peak

• 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 of the mountain, creating a sharply pointed summit.
• A pyramidal peak has steep, triangular faces divided by sharp ridges or arêtes.
• Erosion over time may culminate in a high triangular peak formed by three or more glaciers eroding toward each other.