It looks, at first glance, like little more than a slight rise in the field. But the material that makes up this mound tells a different story: it is composed almost entirely of burnt and fire-cracked stone, the accumulated debris of repeated high-temperature activity carried out here, possibly thousands of years ago.

The mound is a fulacht fia, a type of prehistoric cooking or processing site found in extraordinary numbers across Ireland, with Cork among the most densely scattered counties. The term, loosely translated from Old Irish, refers to a cooking pit of the wild or a cooking place associated with wandering hunters, though the full range of activities that took place at these sites is still debated. The typical arrangement involves a trough dug into the ground, often timber-lined, which was filled with water. Stones were heated in a nearby fire and then dropped into the trough to bring the water to a boil. After repeated heating and cooling, the stones shattered and became useless, and were discarded to one side. Over time, these discarded stones built up into the horseshoe-shaped or oval mounds that survive today. The Curragh example, with its modest but measurable profile, fits the pattern well. Most fulachta fia date to the Bronze Age, roughly 1500 to 500 BC, though some have earlier or later origins.