When the first edition of the Ordnance Survey six-inch map was produced in the nineteenth century, two distinct enclosures were recorded within the hillfort: a larger oval one near the summit, and a small circular enclosure of roughly ten metres diameter in the south-eastern quadrant, sitting just inside the fort's bank and clearly labelled "Burial Ground". By the third edition, published in 1916, that smaller enclosure had vanished from the map entirely, its name transferred to the larger oval feature. No surface trace of the circular enclosure survives today. Something was lost, cartographically and perhaps physically, in the intervening decades.

Hillforts are large prehistoric enclosures, typically defined by earthen banks or stone walls and generally associated with the Iron Age, though their precise functions remain debated. The one at Belmont forms the outer frame for everything here. Within it, the surviving oval enclosure measures roughly forty metres east to west and thirty-five metres north to south, bounded by a stone wall with a narrow entrance on the eastern side. The interior rises steeply to a flat summit where a single tree stands, and beside it are two inscribed graveslabs. One is dedicated to George Blake and dated 1840. Scattered around are rougher stone grave-markers, and in the north-western quadrant two smaller stones are identified as probable children's graves. The reuse of prehistoric enclosures as burial grounds is not uncommon in Ireland, where ancient earthworks carried an enduring sense of significance, but the layering here, a named burial ground disappearing between map editions while another quietly absorbs its identity, gives the site an additional quiet strangeness.