The enclosure measures roughly 95 metres across its northeast-to-southwest axis, and two banks trace its subcircular perimeter, interrupted at the southeast by the Clarecastle to Clooney road and on the west by the driveway leading to Kilbreckanbeg House.

The driveway itself follows a much older line: it corresponds to a field boundary already marked on the Ordnance Survey six-inch map of 1836, which suggests the enclosure had been partially absorbed into the working agricultural landscape well before anyone thought to record it formally. The site was brought to the attention of the National Monuments Service by Jean-Charles Caillère, who identified it from aerial imagery. Enclosures of this scale in Ireland are generally understood as early medieval in character, though the term covers a wide range of functions, from settlement to ecclesiastical use. A rath, the more familiar circular earthwork enclosure associated with high-status early medieval farmsteads, lies approximately 130 metres to the west, hinting that this was once a busier corner of the landscape than the quiet pasture now suggests.