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Dún Dúchathair (Black Fort)

The Black Fort, known in Irish as Dún Dúchathair, stands dramatically on a rocky promontory along the southern cliffs of Inis Mór in the Aran Islands. Built from dark limestone that gives the site its name, the fort forms a curved enclosure facing the Atlantic Ocean. Its thick dry-stone walls rise from a rugged karst landscape of exposed rock and low vegetation. Compared to the nearby and more visited Dún Aonghasa, the Black Fort feels more isolated, with fewer visitors and uninterrupted views of the sea. Inside the enclosure, low stone remains hint at possible former dwellings, while the surrounding cliffs emphasize both its defensive strength and vulnerability to erosion.

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