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Difference between continental glaciers and valley glaciers? Continental glaciers are known as ice sheets and cover extensive  areas of Antarctica and Greenland. Valley glaciers come from these  ice fields or mountain glaciers and sliâ¦de down the mountainsides  like long ribbons.
While Valley Glaciers flow downhill within the confines of a valley and sculpt the land into rugged terrain, Continental Glaciers flow outward in all directions, often smoothing out the land beneath it. Ice Sheets. Massive expanses of ice that are over 19,000 feet (50,000 sq km) are known as Ice Sheets.