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 erratic boulders of Estonia believed they had been carried by icebergs. However, in the following years of the 19th century the glaciation theory slowly gained the ascendancy. Glacial erratic boulders of Estonia Glacial erratic boulders of Estonia are large boulders of rock which have been formed and moved into Estonia by glacial action during previous ice ages. Before the takeover of Estonia by the Soviet Union, these large boulders were a symbol of national identity. They are now registered and protected by the Estonian government. These boulders are found in especially large quantities in Estonia. Most of the boulders greater than in circumference found