The summit of Slieve Gullion in County Armagh features a passage tomb known locally as the 'Calliagh Beara's House'. There is also a lake, where the Calliagh is said to have played a trick on the mythical warrior, Fionn mac Cumhaill, when he took on the physical appearance of an old man after diving into the lake to retrieve a ring that the Calliagh fooled him into thinking was lost.