As the glaciers expanded, due to their accumulating weight of snow and ice , they crushed and scoured surface rocks and bedrock. The resulting erosional landforms include striations, cirques, glacial horns, arêtes, U-shaped valleys, roches moutonnées, and hanging valleys.
Later, when the glaciers retreated leaving behind their freight of crushed rock and sand (glacial drift), they created characteristic depositional landforms. Examples include glacial moraines, eskers, and kames. Drumlins and ribbed moraines are also landforms left behind by retreating glaciers. The stone walls of New England contain many glacial erratics, rocks that were dragged by a glacier many miles from their bedrock origin.
Selling the ICE AGE ; You'll find some of the nation's finest examples of glacial landforms Down East, where efforts are under way to market them as an unspoiled trail for 'geotourists.'
May 27, 2007; TUX TURKEL Staff Writer Portland Press Herald (Maine) 05-27-2007 Selling the ICE AGE ; You'll find some of the nation's finest...