There was no mound, no surface trace, nothing to suggest that anything of note had ever happened here. It took an act of modern infrastructure to reveal it.

A fulacht fia is a type of ancient cooking site found in great numbers across Ireland, typically consisting of a horseshoe-shaped mound of burnt and fire-cracked stone surrounding a trough, where water was heated by dropping in stones made red-hot in a fire. They date mostly to the Bronze Age, roughly 1500 to 500 BC, though the tradition may extend earlier. The Rathgoggan example came to light in 1988 during construction of the Bruff to Mallow gas pipeline, and what emerged was a semicircular spread of burnt material extending from the left side of the pipeline corridor, roughly six metres in length and nearly four metres wide within the cut. Because no corresponding mound was visible in the open field beyond the corridor, it is possible the spread is connected to a second fulacht fia recorded a short distance to the south, around four metres away. Whether the two represent a single complex disturbed over time or two separate episodes of activity in the same patch of ground is not resolved.