Clew Bay is a large ocean bay on the Atlantic coast of County Mayo, Ireland. It is roughly rectangular and has more than a hundred small islands on its landward side; Ireland's best example of sunken drumlins. The larger Clare Island guards the entrance of the bay.
Clew Bay from the south
Old Head Wood Nature Reserve (southern edge of Clew Bay
Clew Bay as seen from the top of Croagh Patrick.
Clew Bay as seen from Westport.
A drumlin, from the Irish word droimnÃn, first recorded in 1833, 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. Assemblages of drumlins are referred to as fields or swarms; they can create a landscape which is often described as having a 'basket of eggs topography'.
Drumlins around Horicon Marsh, Wisconsin, in an area with one of the highest concentration of drumlins in the world. The curved path of the Laurentide Ice Sheet is evident in the orientation of the various mounds.
Elongate and forested drumlins south of Puerto Williams, Chile. Flow direction here was at time of formation from west to east (left to right on picture).
Clew Bay in County Mayo, Ireland, is a vast field of drowned drumlins, which are now islands.
Drumlin field in Western New York state. The drumlins align with glacial flow.
