ArdloughnabrackbaddyArdloughnabrackbaddy is a mountain in County Donegal, Ireland, with a height of.GeographyIt sits above Loughnabrackbaddy lake and is the middle summit and third highest of the "Seven Sisters". The Seven Sisters are part of the Derryveagh range and includes Muckish, Crocknalaragagh, Aghla Beg, Ardloughnabrackbaddy, Aghla More, Mackoght and Errigal.