The example at Kilcolman in County Cork is one such quietly unremarkable feature, sitting in rough grazing ground roughly fifteen metres north-west of a pond, its oval shape partially obscured by encroaching vegetation. What lies beneath the grass and scrub is a mound of burnt and shattered stone, the accumulated debris of repeated heating and cooling over what may have been centuries of use.

A fulacht fia, the term used in early Irish sources, is essentially an ancient cooking or heating site. The typical process involved heating stones in a fire and then plunging them into a water-filled trough, bringing the water rapidly to the boil. The cracked and discarded stones piled up around the trough over time, forming the low horseshoe-shaped or oval mounds archaeologists now identify across the landscape. The Kilcolman mound measures roughly nineteen and a half metres north to south, twelve metres east to west, and stands only about forty-five centimetres high, which gives some sense of how unassuming these features can look in the field. More striking than the mound itself is its context: this is not an isolated site but one of a cluster of five fulachta fiadh in the same area, suggesting the location was returned to repeatedly, perhaps because of the proximity of water from the nearby pond.