They appear as low, horseshoe-shaped mounds, typically found close to a water source, and for a long time their purpose was a matter of genuine debate among archaeologists. The leading explanation now is that they functioned as cooking sites, in use roughly between 1500 and 500 BC during the Bronze Age. The method involved heating stones in a fire until they were intensely hot, then dropping them into a water-filled trough, which would bring the water rapidly to the boil. The crescent shape of the mound is the accumulated debris of those fire-cracked and shattered stones, discarded after each use.

The example recorded in Carrig townland, County Cork, sits within a county that contains an exceptionally high density of these monuments. Cork's landscape, particularly its wetter lowland areas and river margins, proved well suited to their construction, and new examples continue to be identified through aerial survey and ground investigation. The Carrig townland site is one of a considerable number catalogued across the region, each one a quiet marker of organised, repeated activity in the same spot over what may have been generations. Beyond the townland location, detailed specifics for this particular site remain sparse, which is itself a reminder of how much Bronze Age evidence still awaits fuller documentation in the Irish record.