Fulachtaí fia are ancient cooking sites, typically Bronze Age in date, where stones were heated in fire and dropped into a water-filled trough to bring it to the boil. The process leaves behind a characteristic mound of fire-cracked, heat-shattered stone, dark and often waterlogged, which can survive in the soil for thousands of years. At Coolbane, that spread of burnt material is what remains visible, an unassuming patch of scorched earth and broken stone in otherwise ordinary farmland.

What gives this particular site some added context is its proximity to a ringfort, located roughly thirty metres to the south-east. Ringforts, roughly circular enclosures defined by earthen banks or stone walls, were the most common form of rural settlement in early medieval Ireland, and it is not unusual to find earlier prehistoric features in their vicinity. Whether the fulacht fia at Coolbane predates the ringfort by centuries or whether there was any functional relationship between the two remains unknown, but their closeness in the landscape is a reminder of how densely layered Irish farmland can be, with monuments of quite different periods sitting quietly within sight of one another.