The crossword solution for the term 'Large Heap' is 'MOUNTAIN', which is an 8 letter word. A MOUNTAIN is a large landform that rises above the surrounding land in a limited area, usually in the form of a peak. Mountains are generally steeper than hills and are formed through tectonic forces or volcanism. They can also be formed by erosion. A large heap is a large pile of something, such as rocks, dirt, or snow, and mountains are often referred to as large heaps of rock and soil.