The find was a fulacht fia, a type of ancient burnt mound site found in considerable numbers across Ireland, typically interpreted as outdoor cooking places where water in a timber or stone trough was heated by dropping fire-cracked stones into it. This particular example had already been flattened before the road ever arrived, its mound levelled during earlier land reclamation on what had been ordinary pasture ground, roughly twenty metres from the townland boundary with Ballysimon.

The excavation was carried out under licence number 01E0484 and documented by Collins in 2001 and 2003. What remained of the site was a spread of burnt material measuring ten metres by eight metres, with a sub-rectangular trough at its centre. Inside that trough, archaeologists found the trace of a single timber, 1.43 metres in length, though it was in a very poor state of preservation. Two modern field drains had been cut directly into the mound at some point, and both were found to be filled with burnt stone, suggesting that the material had simply been pushed aside and redeposited when the drains were dug. The combination of earlier levelling and later drainage work meant that the site, by the time it was formally excavated, was already significantly disturbed.

There is nothing to see at Peafield today. The site lies under the Limerick Southern Ring Road, consumed by the infrastructure it was uncovered in advance of. Its interest is less as a place to visit than as a reminder of how much archaeology surfaces only when ground is broken for other purposes entirely, examined briefly, recorded, and then built over. The Collins reports held in the national excavation archive remain the primary record of what was found here, and for anyone tracing the distribution of fulacht fia sites across County Limerick, this one sits quietly in the data, noted and accounted for.