Donegal

Ancestral home to the once powerful O’Donnell Clan, County Donegal is the most northerly county in Ireland – sharing a border with Londonderry, Tyrone and Fermanagh in Northern Ireland and Leitrim in the Republic – and its topography is the most rugged in Ulster, lying as it does between the Derryveagh Mountains in the north and the Bluestack mountains in the south.