Moraine

Moraines are accumulations of debris and rocks that have fallen onto the glacier surface or have been pushed along by the glacier as it moves. The materials composing moraines can range in size from silt to large rocks and boulders. Moraines have a form of distinct ridges and mounds, and can be visible long after the glacier retreats.

There are various types of moraines: lateral moraine, medial moraine, ground moraine, terminal (or end) moraine, recessional moraine, push moraine.