Straighter valleys than those cut by rivers. Hanging valleys - less deeply cut side valleys of spur glaciers. Cirques - the bowl shaped depression with precipitous walls at the head of a glacier. A tarn is a lake occupying a cirque where the glacier has melted away. A col is the pass between the heads of two glacial valleys flowing in opposite directions from a divide.
Aretes are sharp edged ridges between adjacent cirques.
Stratified drift - sediments laid down by glacial meltwater. Loess - glacial flour or stratified drift that has been moved about and deposited by the wind. May be tens of meters thick Rearranges earlier drainage system Recessional moraines - a series of terminal moraines formed by a retreating glacier or ice sheet that temporarily stabilizes from time to time. Note direction of ice movement. Moraines on a continental scale are very common in the upper midwestern and northeastern parts of the U.S. - particularly in areas around the Great Lakes.