What makes it worth a second look is partly what has happened to it over time: the outer face of its wall has been packed with rubble cleared from nearby fields, the kind of slow, incremental alteration that happens when a prehistoric structure becomes, for working farmers, simply another convenient place to deposit stones.

The site is a cashel, a type of stone-built ringfort in which a roughly circular area is enclosed by a dry-stone wall rather than an earthen bank. A cashel typically served as a defended farmstead during the early medieval period, though many were built and used across a broad span of centuries. This one measures about 29.2 metres in diameter, with a wall approximately 1.8 metres wide and surviving to a height of around half a metre. McCaffrey, writing in 1952, recorded it as a circular stone fort with a wall constructed of two faces of blocks set on edge, a technique in which upright slabs form the inner and outer skins of the wall, with fill material between them. Associated with the enclosure is a possible house site, which, if confirmed, would suggest the cashel once contained a domestic structure within its walls, as was common in such settlements.