The mound measures roughly fourteen metres north to south and twelve metres east to west, and its composition, burnt stones and charcoal, is the calling card of a fulacht fia. These are among the most common prehistoric monuments in Ireland, typically Bronze Age in date, and they are understood to have functioned as outdoor cooking sites. The usual interpretation involves heating stones in a fire, then dropping them into a water-filled trough to bring the water to a boil; the cracked, fire-shattered stones were then discarded to either side of the trough, gradually building up the characteristic horseshoe shape over repeated use.

The site was identified by Prendergast in 1977, recorded in what has become a standard reference for the area. The boggy terrain surrounding it is typical for this class of monument; fulachtaí fia are almost always found near a reliable water source, whether a stream, a spring, or waterlogged ground, which would have provided the liquid central to their operation. The charcoal within the mound points to sustained burning over time, and the burnt stone scatter gives a tangible sense of the accumulated labour of repeated firings, each one leaving its fractured residue behind.