Here's a little more about them:

* Formation: Drumlins are formed when a glacier moves over previously deposited sediment, shaping it into a streamlined, elongated hill.

* Shape: They are typically oval or elongated, with the steeper side facing the direction from which the glacier came.

* Size: Drumlins can vary in size, ranging from a few meters to hundreds of meters in length and height.

* Location: They are often found in groups, sometimes in hundreds, in areas that were once covered by glaciers.

Let me know if you'd like to know more about glacial landforms!