 In the 15th century the hill was the site of one of nine beacons maintained by the Sheriffs of Nithsdale and Annandale.In the late medieval era (c. 16th C.) an L-shaped tower house was built in the northwest corner of the central area, with floor plan of roughly ; a smaller extension to the northwest is speculated to have been a tower stair.The tower house is thought to have been demolished between 1700 and 1750, used to build the church in Tynron (Tynron Kirk) and a barmkin wall fortification enclosing the summit may have been added in around the same period.