glaciers are masses of ice that persist from year to year and tend to flow downhill under their own weight. they range in size, location, and other characteristics. complete the missing part of each sentence with the correct glacier type. Ice sheets. The largest accumulations of ice are in Slightly smaller accumulations would be dome-shaped ce caps. regional ice sheet are Alpine glaciers. The smallest alpine glaciers are called Piedmont glaciers Glaciers that flow out of the mountains into broader, less confined topography are called Cirque glaciers.