It never appeared on the Ordnance Survey maps of 1838 or 1929, which means it went unrecorded during the great nineteenth-century effort to chart every feature of the Irish landscape. That absence alone makes it curious; whatever this enclosure is, it slipped through the net.

The enclosure is roughly circular, measuring approximately 22 metres east to west and 23 metres north to south. It takes the form of a slightly raised central platform defined by a scarp, with a surrounding fosse (a ditch) and an outer bank beyond that. This arrangement, a raised interior ringed by a ditch and bank, is typical of a ringfort or a related enclosure type, structures that were built throughout Ireland from the Iron Age into the early medieval period, often as enclosed farmsteads or places of local significance. Here, though, the earthwork has not fared well. The western arc preserves the clearest evidence, where the fosse reaches about three metres wide and the outer bank survives as a low, slumped undulation. Elsewhere the features are barely readable, and a later field bank, running roughly north to south, cuts across the eastern edge entirely, further disrupting what was already a worn and settled monument. A small cluster of stones lying just to the east may be the scattered remains of the levelled outer bank, or simply debris from agricultural clearance; it is not possible to say which. In the south-west quadrant of the interior, a roughly triangular granite stone, about half a metre long, juts from the ground, unexplained.

The ridge itself frames all of this in an unusually dramatic setting. To the north, the Nephin Beg range stretches across the horizon with Nephin Mountain prominent against the sky. To the south-west, the ground falls away towards a partial view of Clew Bay, with the outline of Croagh Patrick visible beyond. It is a commanding position, high and open, and one that whoever chose this spot would have understood very well.