That ambiguity is not a failure of record-keeping; it is, rather, the honest condition of this particular site. A fulacht fia is a type of prehistoric cooking or heating site, typically identified by a horseshoe-shaped mound of fire-cracked stone left over from repeated cycles of heating stones and dropping them into water-filled troughs. They are among the most common archaeological monument types in Ireland, and yet this one, at Caher in County Kerry, has the distinction of being a monument whose existence cannot currently be confirmed on the ground.

The site came to light in 2000, when Michael Connolly, County Archaeologist with Kerry County Council, surveyed a roughly 40 square mile area north of Killarney as part of a road route assessment. During that work, he recorded seven fulachta fia in the area, of which this was one. When the location was subsequently examined more closely, however, no visible surface trace could be found at the given coordinates. The monument appears to sit within an unplanted forestry buffer zone, fenced off to the west and north with post and wire, hemmed in by forestry on those same sides and by a field boundary to the east and south. Left ungrazed and largely undisturbed, the ground has been overtaken by dense vegetation, making it genuinely difficult to pinpoint anything within the area, let alone confirm the presence of a low, grass-covered mound of heat-shattered stone.

The site is not accessible in any practical sense, and even if it were, there would be nothing obvious to see. What makes it worth noting is precisely that quality of unresolved presence, a monument recorded, fenced off, and slowly being swallowed, its confirmation deferred indefinitely by a combination of post and wire and encroaching greenery.