A medial moraine is a type of glacial landform that occurs when two glaciers merge. As the glaciers flow together, debris and sediment from their edges combine, forming a ridge of material in the center. This ridge is typically composed of rocks, soil, and other debris that the glaciers have picked up along their paths. Medial moraines can be found in many mountainous regions where glaciers are present, such as the Himalayas and the Alps. They provide important information about the movement and history of glaciers, helping scientists understand past climate conditions and glacial dynamics.