These accumulations, known in Irish archaeology as burnt mounds or fulacht fiadh, are among the most common prehistoric monuments in the country, yet their precise function remains genuinely contested. They are generally understood to have involved heating stones in a fire and dropping them into a water-filled trough to bring the water to a boil, though whether this served cooking, bathing, textile processing, or some combination of these purposes is still debated.

When archaeologist Yvonne Whitty excavated this particular site as part of the N11 road improvement scheme, she found the mound contained not one but two distinct phases of use. The earlier phase, dated by radiocarbon analysis to the early Bronze Age, consisted of a pit, a hearth, and a series of postholes, suggesting some kind of simple structure stood here. The later phase, dating to the middle or late Bronze Age, was more elaborate, with a trough added alongside numerous additional pits and hearths. The gap between these two periods of activity is not recorded, but the fact that people returned to the same spot, across what may have been generations, points to a location that held some persistent practical or perhaps social significance for communities in this part of Wicklow.