A rath, as this type of monument is properly known, is an enclosed settlement typical of early medieval Ireland, usually formed by one or more earthen banks defining a roughly circular living space. This one is slightly oval, measuring around 34 metres northwest to southeast and about 28 metres in the opposite direction, its perimeter defined not by a bank but by a scarp, a cut or sloped edge in the ground, which rises to its tallest at the northeast, where it reaches two metres. The eastern side drops away toward a stream roughly 100 metres off, and a low, slumped section of the scarp there may mark where an original entrance once stood, opening onto that gentle downslope.

The interior is not entirely level. The northwest quadrant sits slightly higher than the rest, and the ground falls gradually toward the east and southeast from there. Somewhere in the northern half, a shallow grassed-over depression, about four metres by two and a half and half a metre deep, hints at something beneath, perhaps a collapsed feature or the ghost of a structure, though the notes do not say more. The enclosing scarp is thickly grown with hawthorn and brambles, particularly dense along the southwest arc, and vegetation is beginning to claim the western half of the interior as well. Despite all this, the site still commands a good eastward view over an undulating landscape of gravel hills, a glacially shaped terrain typical of this part of Mayo, with a small lake sitting in a hollow about 120 metres to the northwest. Another rath stands only 220 metres to the northeast, which suggests this was once a more populated stretch of land than the rough pasture and encroaching quarry now imply.