What appears from a distance to be a modest rise in a field turns out, on approach, to be a precisely organised earthwork: a roughly circular enclosure some 27 metres across, defined by an earth and stone bank that stands up to 1.5 metres on its outer face, with stone facing still visible along the southern, south-western, and northern arcs. Inside that outer bank, the interior is almost entirely taken up by a central circular mound, itself ringed by three concentric earthen banks and the remnant arc of a fourth. The effect is something like a series of low ripples frozen in the ground, each ring diminishing slightly as it approaches the small central mound at the core.

A barrow of this kind is a prehistoric burial monument, typically raised over the remains of the dead, though the specific function of each individual example varies considerably. The concentric arrangement here is unusual and gives the site a formality that sets it apart from simpler examples. Practical history has left its mark too: cattle gaps have been cut through the outer bank at the south and north-north-west, and old field boundaries running on north-west to south-east and north-east to south-west axes have been absorbed into the bank along the north-eastern and south-eastern arcs, the working landscape of later centuries quietly folded into something far older. By the 1840s, local memory had reframed the site entirely. It was recorded in the Ordnance Survey Name Books for the parish of Kilcummin as a "Danish Fort", a label commonly applied across Ireland during that period to ancient earthworks whose true origins were not understood. The Danes in question were largely imaginary; the earthwork, almost certainly, is not.