At Kilnahulla More in north Cork, one such site sits in rough grazing land as a low, roughly rectangular mound of burnt stone and charred earth, measuring about 5.2 metres north to south, 1.5 metres east to west, and barely 0.2 metres high. Nothing about it announces itself.

A fulacht fia, the term used in early Irish sources, is generally understood to be a Bronze Age cooking site, though some scholars have proposed other functions including textile processing or bathing. The typical arrangement involved a trough, often timber-lined or cut into the ground, filled with water, which was then heated by dropping fire-cracked stones into it. Those stones, once shattered by repeated heating and cooling, were discarded into a mound nearby. Over centuries, that spoil heap is frequently all that survives, which is precisely what remains at Kilnahulla More. What makes this particular site more than a solitary curiosity is its context: it belongs to a cluster of five fulachta fiadh in the immediate area, suggesting that this patch of north Cork was, at some point in prehistory, a place of repeated or communal activity rather than a single isolated episode of use.