A fulacht fia is a type of ancient outdoor cooking place, typically identified by a horseshoe-shaped mound of fire-cracked stone and charcoal, the accumulated refuse of repeated use over generations. At Park, that mound no longer rises above the surrounding farmland. Around 1981 it was levelled, leaving only the grass-covered spread of burnt material that marks the site today.

The levelling, though destructive, did produce one notable find. During the work, a piece of what local sources described as black oak turned up, roughly six feet long and three inches thick. Preserved timbers of this kind are not unusual in association with fulachtaí fia; waterlogged or charred wood can survive for millennia in the right conditions, and such pieces sometimes formed part of a trough in which water was heated by dropping fire-cracked stones into it. This particular piece, however, was later destroyed, leaving no physical record behind. What had been an intact, if unremarkable, prehistoric monument became an invisible one, its most tangible surviving artefact gone before it could be properly examined.