Summary:
- Glaciers can carry rocks of any size, from giant boulders to silt.
- The material dropped by a glacier is usually a mixture of particles and rocks of all sizes.
- This unsorted pile is called glacial till.
- Water from the melting ice may form lakes or other water features.
- Varves form where lakes are covered by ice in the winter.
- Melting ice brings running water that deposits lighter colored sands.
- The presence of glacial Till means there was a glacier in the area.