It is, in fact, the remains of a fulacht fia, one of the most common yet consistently overlooked monument types in the Irish archaeological landscape. These are the scorched remnants of ancient cooking sites, where stones were heated in fire and then plunged into water-filled troughs to bring the liquid to a boil. The shattered, heat-cracked stone accumulated over repeated use into the characteristic horseshoe-shaped or oval mounds that survive in their thousands across Ireland, many of them, like this one, still lying quietly beneath ordinary farmland.

The mound at Ballyclogh measures 12.5 metres north to south and 10 metres east to west, a modest but well-preserved example of the type. The proximity to a spring is entirely typical. Fulachtaí fia are almost always found close to a reliable water source, since the whole operation depended on a ready supply. The monument dates in general to the Bronze Age, roughly 2000 to 500 BC, though the type persisted into later periods in some areas. No excavation details are recorded for this particular site, so what lies beneath the grass, whether a surviving trough, wooden lining, or associated features, remains unknown.