The qualification matters here. A fulacht fia, the term for a type of prehistoric burnt mound associated with outdoor cooking or heating water using fire-cracked stones, is typically identified by a horseshoe-shaped mound of shattered rock beside a water source. At this location in Caher, Co. Kerry, there is no visible surface trace at all. The site exists, in a sense, as a probability rather than a confirmed monument.

It came to light in 2000, when Michael Connolly, County Archaeologist for Kerry County Council, was carrying out a systematic assessment of a roughly 40-square-mile area north of Killarney to inform the selection of a road route. In the course of that work, he identified this as one of seven extant fulacht fia in the area and reported it accordingly. The location he recorded falls within an unplanted forestry buffer zone, a strip of ground left clear between commercial forestry and surrounding field boundaries. That strip has since been fenced off with post and wire to the west and north and, left ungrazed, has become progressively choked with dense vegetation. The archaeology, if it is there, has been swallowed by the landscape around it.

What makes this site quietly interesting is less what it contains than what it illustrates about how prehistoric monuments survive, or fail to. Fulacht fia are among the most common archaeological monument types in Ireland, numbering in the thousands, yet many exist only as entries in records, their physical presence obscured or ambiguous. Here, the archaeologist who reported it was careful to say there is every possibility of a fulacht fia in the vicinity, rather than that one definitively exists. The overgrown buffer zone is not accessible to visitors, and locating anything within it would be difficult even with the coordinates to hand.