Drumlin Drumlin A drumlin, from the Irish word "droimnín" ("littlest ridge"), first recorded in 1833, and in the classical sense is an elongated hill in the shape of an inverted spoon or half-buried egg formed by glacial ice acting on underlying unconsolidated till or ground moraine. Drumlins occur in various shapes and sizes, including symmetrical (about the long axis), spindle, parabolic forms, together with transverse asymmetrical forms; their long axis is parallel to the direction of movement of the formative flow at the time of formation. Drumlins are typically long, less than high and between wide. Drumlins generally have a length:width
Glacial series to the margin of the ice sheet, mostly in a northwesterly direction. Meltwater valleys are a special landform in Northern Central Europe. Like all models, the model of the glacial series gives only a simplified picture of the real situation. In particular, it is often forgotten that the landforms of the glacial series were formed almost at the same time alongside one another, whilst the ice margin remained static by the terminal moraine. Furthermore the ice then had to advance as far as the later terminal moraines and then melt away again. The processes that accompany that, clearly alter the