Main featuresThe drumlins are generally on the bottom of the glaciated valleys. They are small hills in the shape of back of whale.
The drumlins would be either small medial moraines deposited during a short stagnation of the glacier during its withdrawal of the valley, or a deposit being in a large notch in the length of the glacier, notches formed by a river on the surface of the glacier for example.
They consist of drifts of the same composition and organization that the Moraine S, can be long a few tens of meters until a few tens of kilometers and are often grouped.
The drumlins are very numerous in Ireland.
- Drumlins in Clew Bay in Ireland on GoogleMap
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