It is easy to overlook, its banks worn down to little more than a gentle swelling in the ground, its surrounding fosse, the shallow ditch that once defined the boundary between inside and outside, largely swallowed by modern field divisions on its southern and western sides. What survives is modest in scale but coherent in outline: an oval interior measuring roughly 26 metres from north-west to south-east and 20 metres across, enclosed by a bank of earth and stone between five and six metres wide and still standing up to a metre in height in places.

This type of earthwork enclosure is broadly classed as a ringfort, one of the most common monument types in the Irish landscape, typically associated with early medieval settlement between roughly the fifth and twelfth centuries. Most were farmsteads, the raised interior and enclosing bank offering a degree of protection for a household and its animals. At Fihoragh, a break of about three metres in the south-eastern bank may represent the original entrance, oriented towards the slope's natural aspect and the low ground beyond. A short segment of an outer bank, surviving to about 0.7 metres in height, is still identifiable at the south-south-east, hinting that the enclosure was once more elaborate than what the current remains suggest. The interior itself slopes noticeably from west-north-west down to east-south-east, a reminder that whoever built here was working with the natural contour of the drumlin rather than against it.

The fosse and outer bank, where they do survive, give the site a slight air of layered intention, a place that was once carefully shaped and bounded. Modern field boundaries have since cut across the southern arc of the monument, obscuring its full circuit, so the clearest reading of the enclosure's original form comes from the northern and eastern sides, where the bank and ditch relationship remains most legible.