This is a rath, the Irish term for a ringfort, the kind of enclosed farmstead that was built in its thousands across Ireland during the early medieval period, roughly between the fifth and twelfth centuries. Most were the homesteads of farming families, defined by a circular bank and an outer ditch, called a fosse, which together served more as a statement of status than a serious defensive barrier.

The earthwork here has a diameter of approximately thirty-five metres. The bank, which stands only around 0.4 metres in internal height, survives along the southern and western stretches of the arc, but the northern and eastern sections have been disturbed over time, pushed outward to form a noticeable angle at the north-east corner. This deformation is old enough to have been recorded on the Ordnance Survey six-inch maps, meaning it was already a feature of the landscape when surveyors passed through in the nineteenth century. Short lengths of the fosse remain visible outside the bank on the northern and eastern sides. A field boundary running roughly north to south cuts across the western half of the interior, and the whole site is heavily overgrown, with vegetation doing much of the work of concealment that centuries of gradual erosion began.