A smooth, egg-shaped hill left behind by a glacier is called a drumlin. <span>Drumlins are </span>approximately 250 to 2000 meters long and 300 to 600 meters wide. D<span>rumlin is glacial landform composed primarily of glacial </span>till (unsorted glacial sediment), so <span>internal composition of a drumlin is stratified sand, unstratified till or bedrock.</span>
