Burnt mounds are among the most common prehistoric monument types found in Ireland, typically formed by the repeated heating of stones in a fire and their subsequent dumping into a water source; the thermal shock shatters the stone, leaving behind a characteristic crescent-shaped heap of blackened, fragmented rock. What makes the Ballyclogh example notable is the detail preserved alongside it.

The site was excavated by archaeologist Yvonne Whitty during improvement works on the N11 road. As well as the mound itself, the excavation uncovered a wooden trough, two wooden platforms, and a surrounding stone platform, a degree of structural complexity that fills out the picture considerably. The trough would have held water that was brought to temperature using the heated stones, a method thought to have been used for cooking, bathing, textile processing, or some combination of purposes. Radiocarbon dating placed all of these associated features in the middle to late Bronze Age, broadly the second millennium BC, confirming the site as a functional space used by communities living in the Wicklow landscape well over three thousand years ago. The survival of organic wooden elements alongside the stone is particularly fortunate; waterlogged or otherwise protected conditions are needed to prevent timber from decaying entirely over such a timespan.