It is a fulacht fia, a type of prehistoric cooking site found in enormous numbers across Ireland, typically Bronze Age in origin, and usually identified by the characteristic horseshoe or kidney-shaped spread of burnt stone that accumulates around a water trough. This one measures just under twelve metres on its longest axis and barely rises thirty centimetres above the surrounding ground, which is about as unassuming as ancient monuments get.

The mound is kidney-shaped, with a six-metre-wide opening facing north towards the stream valley below. The general understanding of how these sites worked involves heating stones in a fire and dropping them into a trough of water to bring it rapidly to the boil, then repeating the process until the stone fractures from thermal shock and is discarded. Over time, the shattered waste material accumulates into exactly the kind of low, dark mound visible here. What makes this particular spot a little more arresting is that a second fulacht fia lies only about four metres to the north-north-west. Whether they were in use at the same time, or represent different phases of activity in the same favoured location, is not recorded, but the proximity of two such monuments to one another is not common enough to pass without notice. The closeness of the stream would have made this slope a practical and probably well-revisited spot for whatever activities, cooking or otherwise, these sites once served.