Slieve Gallion

The earliest reference to Slieve Gallion is from the 7th century, in the Book of Armagh, where it is called , likely meaning "the height of Saint Patrick". This later became Sliabh gCallann, the first element meaning "mountain". A folk etymology is that it means "Callan's mountain", and legend has it that a giant named Callann Mór is buried at Carnanbane on the west side of the mountain. From the Middle Ages until the 20th century, gatherings were held on the mountain to mark the festival of Lughnasadh. In recent decades, there has been an increase in the number of sheep grazing in the area, as well as an increase in mountain biking and hill walking, contributing to erosion.