The site at Lissataggle in County Kerry is one such example, a low, horseshoe-shaped mound of burnt and fire-cracked stone that has sat quietly in the landscape since the Bronze Age, largely unnoticed by anyone not actively looking for it.

A fulacht fia, broadly speaking, is an ancient cooking or heating site. The typical arrangement involves a trough, often timber-lined or cut into the ground, filled with water, which was then brought to boiling point by dropping stones heated in a nearby fire directly into it. The process left behind accumulations of shattered, blackened stone, and it is these spreads of burnt material, gradually mounded by repeated use, that survive as the humped earthworks visible today. The majority date to the Bronze Age, roughly 1500 to 500 BC, though some were used into the early medieval period. Ireland has more of them than anywhere else in Europe, and Kerry has more than most counties. What the people of Lissataggle were actually doing at this particular site, whether cooking meat, processing hides, bathing, or something else entirely, remains an open question that applies to fulachtaí fia generally. The honest answer is that no one is entirely certain, and the debate among archaeologists has been running for decades.