Most ringforts, the circular or oval enclosed farmsteads that dotted early medieval Ireland in their tens of thousands, follow a roughly round plan. This one does not. One side runs almost straight, giving the enclosure a flattened profile that sets it apart, and that peculiarity turns out to be only the beginning of what makes it worth a second look.

The earthwork measures approximately 40 metres northwest to southeast and 39.5 metres northeast to southwest, and it appears on the 1840 edition of the Ordnance Survey six-inch map already in its distinctive D-shaped form. By the time it was formally described in 1971, parts of the original bank had been removed or folded into a modern field boundary running roughly northeast to southwest. Yet the landscape has preserved a kind of ghost outline: a curve in that later field fence follows the same arc that the monument's perimeter would once have traced from east around to southwest, suggesting the D-shape was always the intended form rather than the result of later damage. A substantial earthen bank survives along the straight western side and along the curvilinear stretch from northwest through north to east, while a gap at the northeast, 4.6 metres wide at the top and 2.5 metres at the base, may mark the original entrance, though this remains inconclusive. A long scarp running broadly north-northwest to south-southeast comes to within 1.5 metres of the bank's base on the eastern side before curving outward to form a deep fosse, which is the term for a defensive ditch dug outside an earthen enclosure. Whether this feature is contemporary with the ringfort itself or belongs to a different phase of use is not possible to determine. Stones protrude from the interior surface, but no recognisable structures can be made out among them.