This particular fulacht fia, a type of prehistoric cooking site found in their thousands across Ireland, was still visible enough in 1938 to be recorded on the Ordnance Survey six-inch map of the area around Aglish in County Cork. Not long afterwards, it disappeared entirely, not through neglect or erosion, but by deliberate inundation.

Fulachtaí fia are typically Bronze Age features, formed by the repeated heating of stones in fire and plunging them into water-filled troughs to bring the liquid to the boil. The discarded, heat-shattered stones accumulate into a horseshoe-shaped or circular mound around the trough, which is the visible signature they leave in the landscape. The example at Aglish was recorded as a circular mound before the Lee Valley Hydro-electric Scheme altered this part of Cork beyond recognition. That project, which created the Inniscarra and Carrigadrohid reservoirs on the River Lee during the mid-twentieth century, submerged a considerable area of low-lying land, along with whatever archaeology lay within it. The 1938 map record is now the primary evidence that this particular site ever existed above water level.

There is nothing to see at the surface today. The site is not accessible in any conventional sense, and its exact position lies beneath the reservoir. It survives, if at all, as a drowned earthwork, preserved perhaps in anaerobic sediment, unexcavated and unexaminable without specialist intervention.