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GEOSITE

THE DEIRCS

Glacial corries and U-shaped valleys overlooking Lough Mask

Deirc, Irish for hollow, is used to describe the shallow lakes in the glacial corries of the Owenbrin Valley and around Maumtrasna. Corries are where glaciers are born: snow accumulates, turns to ice, flows downhill and erodes the mountain in a circular fashion. The view from The Deircs over Lough Mask highlights the contrast with the limestone lowlands.

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