This subrectangular site, measuring approximately 63 metres east to west and 52 metres north to south, sits atop a flat platform surrounded by defensive features that suggest its strategic importance. The platform is defined by a scarp ranging from 1.6 to 3.1 metres in height, with faint traces of banks on its eastern and western sides. A wide, flat-bottomed fosse, or defensive ditch, varying between 2.8 and 6.3 metres in width, encircles most of the platform, though it’s absent on the northern side where the natural slope of the ridge has been cut to create a broad, flat berm instead.

The site’s defensive architecture includes an outer bank of earth and stone, between 3 and 4.4 metres wide, running along the outer edge of the fosse on the east side and partially along the north. A wide causewayed entrance on the southern side, measuring 4.5 metres across, provides access to the interior. Intriguingly, the southeast, southwest and northwest corners of the platform are slightly raised, possibly indicating the former positions of corner towers associated with a bawn, the fortified enclosure typical of Irish tower houses. In the northeast corner stand the remains of an unclassified castle, whilst at the base of the ridge below, a hollow depression marks the location of a long-dried well, with what appears to be an old cart track leading upward from it.

The exact history and classification of this monument remain somewhat enigmatic. Archaeological surveys suggest it might represent the remains of an Anglo-Norman earth and timber castle that underwent refortification when the later stone castle was built. The raised corners and defensive features could indicate that the enclosure was contemporary with the castle construction, serving as its bawn. Evidence of 19th-century quarrying in the northwest angle of the platform shows how the site continued to serve local needs long after its military significance had faded, adding another layer to this complex historical palimpsest.