What makes it worth pausing over is the combination of its state of preservation and the small, telling signs that it has never quite been left alone: several cattle gaps cut through the inner bank, evidence that successive generations of farmers found it more practical to adapt the old enclosure than to ignore it.

This is a rath, the most common type of early medieval settlement monument in Ireland, typically consisting of a raised circular or subcircular bank, sometimes topped originally with a timber palisade, enclosing a domestic area where a farming family would have lived. The Beaghroe example measures roughly 51 metres east to west and just over 45 metres north to south, making it a reasonably substantial example of the type. Its defining features are the earthen inner bank and the external fosse, a defensive ditch that survives from the south-east around through the west and on to the north-west. There are also traces of what may be a second, outer bank running from the south-east around to the south, which, if confirmed, would suggest a slightly more elaborate original construction than a single-bank rath. Such concentric arrangements are generally associated with higher-status occupants in early medieval Ireland, though without excavation it is impossible to say more than that the possibility exists here.