A fulacht fia is a prehistoric cooking place, typically consisting of a horseshoe-shaped mound of burnt and fire-cracked stone built up over centuries of use around a water-filled trough. The stones were heated in a fire, then dropped into the water to bring it to a boil, a process that gradually destroys the rock itself and produces the characteristic dark, crumbly mounds that survive in their thousands across Ireland. The Garraun example once rose to a height of 1.5 metres, its accumulated debris covering an area roughly 22.5 metres from north to south and 25.5 metres east to west.

The mound did not survive into the present century intact. Local information indicates it was levelled in 1982, most likely to clear the ground for agricultural use, a fate that has claimed many such sites. What remains is the spread of burnt material beneath and around where the mound once stood, still traceable within the tillage field. What makes the location quietly notable is that it does not stand alone. A second fulacht fia lies approximately 40 metres to the east, suggesting that this particular corner of mid Cork saw repeated or sustained prehistoric activity of this kind, whether across one extended period or in distinct episodes separated by generations.