The example at Knocknalyre in County Cork sits in reclaimed pasture, a circular grass-covered mound measuring roughly seventeen metres east to west and fourteen metres north to south, rising only about forty centimetres above the surrounding land. At its centre is a shallow depression, the kind of subtle detail that, once you know what you are looking at, suddenly makes the whole thing legible.

A fulacht fia, sometimes called a burnt mound, is the accumulated debris of repeated prehistoric cooking or industrial activity. The typical interpretation is that stones were heated in a fire and then dropped into a water-filled trough to bring it to the boil, a method of cooking that leaves behind a characteristic horseshoe or circular mound of fire-cracked, heat-shattered stone, often dark and granular in appearance. These sites date broadly to the Bronze Age, though some have earlier or later phases of use, and their precise function has been debated, with theories ranging from cooking and food processing to brewing, hide-working, or bathing. What makes Knocknalyre quietly interesting is that it does not stand alone. A second fulacht fiadh lies just forty-two metres to the west, suggesting that this particular stretch of Mid Cork was a place of repeated, perhaps sustained activity rather than a single isolated episode. Two monuments this close to one another, both now absorbed into ordinary farmland, point to a landscape that was once considerably busier than it appears today.