It is a fulacht fia, a type of site found in enormous numbers across Ireland, and one of the most recognisable signatures of Bronze Age activity in the landscape. The mound measures roughly fourteen metres by sixteen metres and rises only about half a metre above the surrounding ground, which is why such features so often go unnoticed by anyone not specifically looking for them.

A fulacht fia is essentially the debris of an ancient cooking or heating site. The typical arrangement involved a timber-lined trough filled with water, which was brought to the boil by dropping stones heated in a nearby fire directly into it. After repeated heating and sudden immersion, those stones shatter and become useless, and the fragments are raked out and discarded. Over many uses, sometimes across generations, the cracked and burnt stone accumulates into the characteristic horseshoe-shaped or oval mound that archaeologists now recognise as a fulacht fia. Thousands of these sites are recorded across Ireland, with Cork among the counties most densely scattered with them, though their precise function is still debated; cooking meat, processing hides, bathing, and communal brewing have all been seriously proposed by researchers.