Not through neglect or gradual erosion, but through quarrying, carried out between 1995 and 2000. What had survived for well over a thousand years was removed completely in the space of a few years.

Ringforts, also known as raths, are roughly circular enclosures defined by earthen banks and ditches, built predominantly during the early medieval period as farmstead enclosures. By the time inspectors visited this particular example in 1972 and again in 1973, it was already in a reduced state. A report from 9 March 1972 described an approximately circular enclosure sitting on the western edge of a natural terrace on the face of a high hill, its bank surviving best from the north-north-east around to the south, and elsewhere worn down almost to the level of the interior. There was no visible fosse, the ditch that would typically ring the base of the outer scarp, and the location of the original entrance was uncertain, though a disturbance gap on the eastern side suggested that area. A later earthen bank and a scarp-cum-bank, noted on the south-south-west and north respectively, were considered probably later additions, not original features of the rath itself. The 1973 report measured the sub-circular interior at approximately 32 metres north to south and 30 metres east to west, with the ground sloping gently from north-east to south-west. Some 150 metres to the north-east stood a related monument, a second ringfort known as Rahanduff, which does survive. The Down ringfort and Rahanduff together would once have formed a close pairing on this hillside in the Irish midlands, the kind of clustering that often indicates a settled and significant early medieval landscape. One is gone. The other remains.