Drumlin

• Drumlins are oval shaped hills made of boulder clay
• A drumlin forms when a glacier deposits mounds of boulder clay
• The glacier then continues its journey and smooths the boulder clay as it moves over it
• The steep slope/stoss end of the drumlin shows what direction the glacier was coming from. The gentle/lee slope shows us what direction the glacier was travelling in
• Drumlins usually occur in clusters forming a basket of eggs landscape
• E.g Clew bay in Co. Mayo