This is a rath, the most common type of early medieval enclosure in Ireland, typically built between roughly 500 and 1000 AD as a defended farmstead, with an earthen bank enclosing a circular living area. Most were home to a single farming family of moderate status, and tens of thousands of them once dotted the Irish countryside.

This particular example is subcircular in plan, measuring about 28 metres in diameter. Its defining earthen bank is around 5 metres wide but survives to a height of only about 25 centimetres, which gives some sense of how thoroughly centuries of agriculture and weathering can reduce what was once a substantial structure. The Ballagh stream runs roughly 250 metres to the north-west, a detail that would have mattered practically to whoever first chose this site, water being an obvious consideration for any settled household. Grass and scrub now cover the interior and bank alike, and the original entrance has not been identified, meaning we cannot say with any certainty which direction a family once faced as they came and went from their home.