👉 A drumlin is a type of rock formation that occurs in the Appalachian Mountains of North America. These formations are characterized by their distinctive rock formations, often resembling large drums or bowls, and they can vary in size from small to large. They are typically composed of layers of sandstone and limestone, with some areas containing smaller deposits of igneous rock. The term "drumlin" is commonly used to describe these formations as a general term for rocks that resemble large drums or bowls.
