It is overgrown with young elm trees and scrub, fringed with a discontinuous grassy bank, and accompanied by a small triangular platform to its north-west. Nothing about it announces itself. Yet beneath that unremarkable surface lies the accumulated debris of prehistoric cooking, or at least that is the most widely accepted explanation for what a fulacht fia actually is: a site where stones were repeatedly heated in fire and plunged into a water-filled trough to bring it to the boil, leaving behind a characteristic mound of cracked, heat-shattered stone mixed into dark, charcoal-stained soil.

The site at Attyflin was first formally noted as Site No. 4 by Celie O'Rahilly in 1991, who recorded a circular enclosure defined by dense scrub and perimeter stones, with some field clearance material added over time. Excavation by Cia Mc Conway in 1997 revealed the mound to measure roughly 25 metres by 31 metres and to stand 1.16 metres high at its tallest point. Two hand-excavated trenches exposed at least two distinct phases of activity: the original accumulation of burnt mound material, and a later episode involving a shallow pit with formalised stone kerbing cut into the top of the mound, along with a spread of larger unburned stones that may represent a deliberate stone surface or cairn deposit. A second tranche of investigation came during monitoring work in 2008, carried out under licence by MacLeod and Coshman during a Limerick County Council water mains upgrade running between Adare and Patrickswell. That work revealed approximately one fifth of a horseshoe-shaped burnt mound, along with three pits beneath it, ranging in depth from 0.4 to 1 metre, each containing the same signature burnt material. A megalithic structure lies roughly 110 metres to the north-east, suggesting this stretch of countryside was in use across multiple prehistoric periods.

The majority of the burnt mound remains preserved in situ to the north of the pipeline route. The site sits in working pasture, so access is not guaranteed, and there are no interpretive markers or visitor infrastructure. For anyone walking or driving the Adare to Patrickswell corridor, the mound is not visible from any road; it is the kind of site that rewards background reading more than casual observation. The 2008 excavation report by MacLeod and Coshman, along with Mc Conway's earlier 1997 findings published in the Excavations bulletin, provide the most detailed accounts of what was uncovered.