The feature measures roughly forty metres north to south and sixteen metres east to west, dimensions that speak to sustained, repeated use rather than a single episode.

What lies here is a burnt mound, known in Irish archaeology by the term fulacht fiadh, a type of site found in extraordinary numbers across Ireland. The working principle was simple: stones were heated in a fire, then dropped into a water-filled trough, bringing the water rapidly to the boil. The spent, shattered stones were discarded to one side, building up over time into the characteristic mound of heat-fractured rock and charcoal-blackened earth that survives at Ballinadee today. Debate continues about what these sites were actually used for, with cooking the most widely accepted explanation, though brewing, hide-working, and bathing have all been proposed. What is not in doubt is the density of their distribution across the Irish landscape, or the fact that the great majority date to the Bronze Age, roughly 2500 to 500 BC. This particular example sits in arable land, its archaeological fabric vulnerable to the pressure of ploughing, though the spread of material recorded here suggests a substantial deposit still remains.