What was once recorded as a fulacht fia, a type of prehistoric cooking or industrial site typically identified by a horseshoe-shaped mound of fire-cracked stone and charcoal, had already been largely destroyed before anyone could study it in detail. By the time the Castleisland District Archaeological Survey documented it in March 1990, the monument amounted to little more than a small mound of burnt material, and even that was a diminished remnant.

At some point during the 1980s, the landowner had levelled the mound and removed a quantity of the stone to metal a farm road, meaning the material was used as hardcore or surface fill. Fulachta fia are among the most common prehistoric monument types in Ireland, numbering in the thousands, and they tend to survive precisely because their mounds of shattered, heat-fractured stone have little obvious value to later generations. When they do disappear, it is usually through gradual agricultural attrition rather than a single deliberate act. The Tooreenard example was formally classed under its older spelling, fulacht fiadh, in both the Sites and Monuments Record of 1990 and the Record of Monuments and Places in 1997, giving it official status as a protected monument even in its damaged state.