The cliff edges of the northwest side of Gillies Hill, known as Touchadam Craig, are the habitat of several dozen ancient Scots pines. One of these pines that has since fallen to the expansion of the Murrayshall Quarry, was known as the Bonnety Tree and is said to have been the tree upon which the Gillies hung their bonnets before their descent onto the battlefield. In 2016 a new Bonnety Tree will be planted on the southern end of the hill with the cooperation of the Ogilvie Group.