The site of a late prehistoric fort recorded at Slieu Curn. It was visited by Dr Larch Garrad in 1983. 


David Craine, writing in 1939 recorded the following information which may relate to this site; "At the entrance to the Glion Dhoo-the Glen of Ballaughwere two circular earthworks occupying dominating positions on the flanking hills. The western one on Slieau Curn was destroyed early in the 19th century. The other, the Castal Lajer (strong castle) still stands high up on Slieau Vollee." (Some Notes on the Parish of Ballaugh, in the Proceeding of the IoMNH&Asoc, vol 4 #3 1939).