Beinn Laoigh (Ben Lui)over the River Cononish. This magnificient mountain is located in Tyndrum, in the Southern Highlands. Described as the 'Queen of the Scottish Mountains' she stands at a height of 1130m/3707ft. A long walk in from Dalrigh or Tyndrum, following the River Cononish provides the more pleasing of the two possible approach routes.