Beneath the grass, a spread of burnt material marks it out as a fulacht fia, a type of prehistoric cooking site found in considerable numbers across Ireland, particularly in low-lying or waterlogged ground near a water source. The typical interpretation is that stones were heated in a fire and then dropped into a water-filled trough, bringing it rapidly to the boil; over time the shattered, heat-cracked stone accumulated into a horseshoe-shaped or rounded mound. The proximity to both running water and a spring here fits the pattern precisely.

The mound was recorded on the Ordnance Survey six-inch map of 1938, which suggests it was a visible feature in the landscape at that point, prominent enough to be noted by surveyors. Most fulachta fiadh in Ireland date to the Bronze Age, broadly spanning the period from around 1500 to 500 BC, though some examples have produced earlier or later dates. They are among the most common archaeological monument types in the Irish countryside, yet individually they tend to attract little attention, sitting quietly in fields and along riverbanks, their function still occasionally debated by archaeologists. Some scholars have proposed uses beyond cooking, including textile processing or bathing, though no single explanation has settled the question entirely.