The impressive earthwork consists of a circular flat-topped mound, measuring 12 metres across at its summit and 20 metres at its base, constructed from earth and stone and surrounded by a deep defensive ditch. The top of the motte slopes gently towards the northwest, whilst the entire structure rises dramatically from the landscape below.

Adjacent to the motte on its north-northeast side lies a crescent-shaped bailey, roughly 36 metres from northwest to southeast and 16 metres from northeast to southwest. This lower courtyard area is protected by two earthen banks with a fosse running between them, which curves around to also encircle the base of the motte. The interior of the bailey slopes slightly towards the south-southeast, following the natural contours of the ridge. The monument’s distinctive outline remains clearly visible from above, as captured in aerial photographs from 1970.

The castle forms part of a rich archaeological landscape in this area of Westmeath. Within walking distance lie several other historical sites: Taghmon Church, its graveyard and another castle can be found 315 and 480 metres to the northwest, whilst three ringforts; likely Iron Age or early medieval farmsteads; are scattered nearby, with two situated 160 and 215 metres to the north and another 130 metres to the southwest. Together, these monuments tell the story of continuous occupation and strategic importance of this elevated site throughout Ireland’s past.