Beneath the grass lies a levelled spread of burnt material, the faint signature of a fulacht fia, one of the most common yet least understood monument types in the Irish landscape. A fulacht fia is essentially a prehistoric cooking or processing site, typically consisting of a trough dug into the ground, a hearth nearby, and a mound of fire-cracked stones that accumulated as heated rocks were used to boil water. Thousands have been identified across Ireland, mostly dating to the Bronze Age, yet the one at Moneygaff survives in a particularly quiet, unassuming way.

The site came to light not through excavation or dedicated survey but through the more prosaic business of land drainage, with local knowledge pointing to the spread of burnt stone and scorched material beneath the surface. It has since been levelled, leaving no visible mound. The only moment when the past briefly reasserts itself is when the field is ploughed, at which point the spread of material becomes visible again at the surface, a dark smear in the turned earth that marks where prehistoric activity once took place.