Moraine
 

Moraine is the name for raw glacial debris, the rock that is loosened and carried by glacial ice, then deposited where the ice melts. Moraine has one of the most chaotic characters of any deposit, made up of totally unsorted rocks with no sorting whatsoever--just dropped when the ice melts. Terrains with moraine are hard for man to use, because there are rocks of all sizes everywhere.