It is the kind of place that exists almost entirely on paper, known only because a gas pipeline happened to cut through it at exactly the right moment.

A fulacht fia, sometimes spelled fulacht fiadh, is a type of ancient outdoor cooking or heating site found across Ireland in enormous numbers. The typical remains consist of a mound of fire-cracked stone, usually horseshoe-shaped, built up over centuries of repeated use, alongside a trough that would have been filled with water and heated by dropping stones from a fire directly into it. The example at Anglesborough came to light in 1986, when excavation works associated with the laying of a gas pipeline exposed the site. The findings were recorded by Gowen in 1988 and assigned the reference number BGE No. 2623. No surface mound survives today, which is not unusual; many fulachtaí fiadh have been levelled by centuries of ploughing or simply eroded away, leaving only the scorched and shattered stone in the subsoil to confirm what was once there. The site lies in pasture approximately 270 metres east of a road marking the townland boundary with Lackendarragh, and a possible linear earthwork sits roughly 85 metres to the south-west, hinting that this corner of County Limerick may have seen more ancient activity than the quiet fields currently suggest.

Because there are no surface remains and the site does not appear on standard Ordnance Survey maps, there is little to see on a visit in any conventional sense. The location is privately farmed pasture, and access would require landowner permission. What makes it worth knowing about is less the site itself and more what its discovery reveals about how archaeology works in Ireland: a great deal of what survives from prehistory only becomes visible when the ground is disturbed for an entirely unrelated purpose, and the record of that moment, a brief excavation report, a reference number, a compiled entry, becomes the only lasting trace.