Ringforts, sometimes called raths, are among the most common early medieval monuments in Ireland, typically dating from roughly the sixth to the tenth century and serving as enclosed farmsteads for a single family or small community. What makes this one quietly compelling is the degree to which it has been absorbed into a later designed landscape, the demesne plantation of beech trees effectively swallowing a structure that predates the abbey itself by many centuries.

The fort is a substantial piece of engineering by any measure. Its roughly circular interior spans approximately 32 metres east to west and 36 metres north to south, and it follows the classic rath design: a raised inner area enclosed first by an earth and stone bank, then by a fosse, which is a defensive ditch cut around the outside, and then by a further outer bank beyond that. The dimensions recorded are precise enough to give a clear picture. The inner bank rises nearly 1.8 metres on its outer face, while the fosse reaches a depth of 1.7 metres, suggesting something more than a symbolic boundary. A second ringfort lies roughly 380 metres to the south, raising the possibility that this part of the demesne once formed a small cluster of early settlement. The southeastern quadrant of this fort has suffered damage from quarrying at some point, which has removed part of the interior, the inner bank, and the fosse in that section, a reminder that even substantial earthworks are not immune to later land use.