The record amounts to a single annotated X on a map, a pencilled suggestion rather than a confirmed fact. No archaeologist has visited the spot to verify it, and the monument, if it exists, remains unexamined.

A fulacht fia is a type of prehistoric cooking site found in considerable numbers across Ireland, typically identified by a horseshoe-shaped mound of fire-cracked stones beside a trough, where water was heated by dropping in stones that had been made intensely hot in a fire. Thousands have been recorded across the island, many of them dating to the Bronze Age, and they tend to turn up in low-lying or marshy ground. The County Wicklow entry in the Record of Monuments and Places, compiled in 1995, places a marker at this location in Barnacoyle Big with the annotation "fulacht fiadh", the older spelling of the term. Whether that annotation was based on fieldwork, local knowledge, aerial observation, or simply a cartographic inference is not stated. The site has never been formally inspected.