What was once a D-shaped enclosure, roughly twenty metres across, now lies beneath ordinary pasture, its outline surviving only in the broken lines of an 1894 Ordnance Survey map. A rath, in early medieval Ireland, was typically a circular or near-circular earthen enclosure surrounding a farmstead, the everyday dwelling of a farming family of some status. This one, however, can no longer be seen at ground level, most likely because reclamation work in the field has smoothed away whatever earthworks once defined it.

The 1894 map records two elements that hint at its original form: a broken line running roughly north-west to south-south-west, and a straight lane of about twenty-two metres along what would have been the south-west side. Tucked just off-centre within what was probably the interior is a souterrain, an underground stone-lined passage of the kind commonly associated with early medieval settlement sites, used variously for storage, shelter, or refuge. The entrance to this souterrain sits within the footprint of a related hut site, suggesting a small cluster of domestic structures once occupied this gentle hillside above the Glasheencorgoad stream. The site may correspond to a place called Lios Cúláin, a name recorded by the scholar Ó Cíobháin in 1978, which would place it within the Irish-language placename tradition that preserved the memory of such enclosures long after the physical remains had gone.