What was once a substantial earthen enclosure, probably a rath, survives today as little more than a faint swell in the pasture and a low scarp on its northern arc, barely a metre and a half high where it has not already merged with the natural slope of the hillside. A rath, for those unfamiliar with the term, is a roughly circular enclosure defined by an earthen bank and ditch, typically associated with early medieval settlement and farming in Ireland. Most were built to enclose a homestead and its associated outbuildings. This one, somewhere between 35 and 40 metres in diameter, has been levelled, and what remains is modest enough that it would be easy to walk across the site without registering what lies underfoot.

The enclosure was recorded on the 1919 Ordnance Survey six-inch map, which captured its circular form before whatever subsequent activity finished the job of erasing it. By the time the site was examined on the ground, the northern arc was the clearest surviving feature, where a slight scarp drops away and blends into the hillside's natural fall toward a flat expanse of bog. That bog stretches wide to the north and north-west, visible from the ridge in a broad, open panorama. A further stretch of bog borders the ridge to the south, so the enclosure once sat between two wet expanses, on a sliver of higher ground that would have offered both prospect and a degree of natural defence or drainage. Whether the builders chose the position for its views or simply for the practical advantage of dry, elevated ground is a question the surviving earthwork cannot answer.