It is a fulacht fia, a type of Bronze Age cooking site found in considerable numbers across Ireland, typically identified by the distinctive horseshoe-shaped mound of fire-cracked stone and charred material left behind after repeated use. The principle was straightforward: stones were heated in a fire and then dropped into a water-filled trough to bring it to a boil, and the discarded, shattered stones accumulated over time into the mound that survives today.

This particular example measures 13.5 metres in length and 9.8 metres in width, rising to a modest 0.65 metres at its highest point. Its opening, roughly 9 metres wide, faces east, and a small circular mound containing similarly burnt material sits immediately to its east, suggesting the site saw more than one phase or focus of activity. The proximity to a stream, running some 100 metres to the east, is entirely typical; fulachtaí fia are almost always found close to a reliable water source, which was essential to the whole operation. The marshy ground of the surrounding rough grazing may itself reflect the kind of low-lying, waterlogged landscape these sites seem to have favoured.