Generally, a bank or layer of mud, gravel, and stones deposited by an advancing or retreating glacier. The term described a family of depositional landforms created by glacier ice. There are five common types: end or terminal moraine, recessional moraine, ground moraine, hummocky/ablation/medial moraine, and lateral moraine. The material, which ranges in size from blocks or boulders (usually faceted or striated) to sand and clay, is unstratified when dropped by the glacier and shows no sorting or bedding.