Dún Dúchathair

Dún Dúchathair or simply Dúchathair (anglicized Doocaher),^[1] meaning "black fort", is a large stone fort on the cliffs at Cill Éinne, (Killeany), Inishmore (one of the Aran Islands) in County Galway, Ireland.^[2] Due to erosion, it now sits on a rocky promontory that stretches out into the sea. On its outer side there are large walls, reaching 6 metres high and 5 metres wide. On the inside are the ruins of clocháns (beehive huts) but no water supply.^[3] There is also evidence of a cheval de frise protecting the entrance.^[4]

Dúchathair

Its age is unknown.^[5]

53°6′16.40″N 9°41′15.25″W