Corrie

Definition: An armchair shaped depression with a steep back wall and a shallow rock lip

• Formed in high mountain areas where glaciers start
• Snow collects in a small hollow
• Over time it compacts and turns to ice
• As the ice starts to move then it plucks rocks from the back wall
• At the base of the bowl the ice scours the rock away through abrasion
• A rock lip is formed as the ice starts to move out of the hollow