At Gortadroma in County Limerick, excavation uncovered a sub-oval spread of heat-shattered sandstone measuring roughly 10.5 metres by 8 metres, sitting within soil blackened by charcoal and overlying a fibrous peaty subsoil. This is a fulacht fia, a type of ancient cooking site found in great numbers across Ireland, typically Bronze Age in origin, and usually identified by exactly this signature: a mound or spread of fire-cracked stone, discarded after repeated heating and quenching in water. The method involved heating stones in a fire, dropping them into a water-filled trough to bring it to the boil, and using that hot water to cook meat or other food. The stones crack and splinter with the thermal shock, and so the mound grows, use by use, over time.

The excavation was carried out by archaeologists Deborah Sutton and Tony Cummins, working under licence reference 05E0626, and recorded in detail on the excavations.ie database. At the approximate centre of the stone spread, they found something that sharpened the picture considerably: a single blackened, heat-cracked slab, measuring 0.18 metres by 0.24 metres and around 0.05 metres thick, set within a greyish-black charcoal-stained silty material. The excavators noted that this slab may have served as a pot stand, providing a stable surface for a vessel above the heat, or that food was placed directly on its flat face for cooking. Its position within the surrounding heat-shattered deposit, rather than at the edge or margins, points to it being a fixed, repeatedly used feature, suggesting the site was returned to on multiple occasions rather than abandoned after a single episode of use.

Gortadroma is a rural townland, and like most fulacht fia sites, this one would offer little to the casual eye without the context that excavation provides. The spread of fractured stone, now recorded, is the kind of feature that road schemes and drainage works routinely disturb before anyone thinks to look closely, which is precisely why licensed excavation reports of this kind matter. For anyone curious about the wider pattern, the excavations.ie database holds thousands of comparable records from across the country, each one a small, specific account of what Irish soil gives up when it is examined carefully.