Terminal Moraine

• A terminal moraine is a ridge across a valley.
• It is made of glacial deposits/till/boulder clay.
• It is unsorted.
• As the glacier moves downhill it acts like a bulldozer, pushing sediment in front of it as it goes.
• As the glacier melts it loses power and deposits moraine.
• Terminal moraine marks the furthest point that the glacier reaches.
• The terminal moraine can form a natural dam, creating a ribbon lake.