Erratics - these are rocks that have been deposited by the glacier. They are usually made of a rock type that would not be found in that area. This suggests that erratics can be carried a long way from an area of different geology.
Drumlins - glaciers can move moraine around in unusual ways which produce interesting features. Drumlins are mounds of deposited moraine. They have a steep side and a sloping side. They can be small or large. They are sometimes described as having a 'basket of eggs' topography because of the unusual landscape they create.