It is not a ruin in the conventional sense, with no fallen walls or collapsed arches to catch the eye, but rather a broad, low bank of earth describing a near-perfect circle roughly 51 metres north to south and 54 metres east to west. The bank itself is substantial, around six metres wide at its base and rising just over a metre above the surrounding ground, giving the enclosure a presence that is felt more than immediately seen.

What makes the site quietly puzzling is the mound sitting inside it, in the western sector of the interior. It measures approximately ten metres by twelve and stands 1.4 metres high, making it a distinct feature in its own right rather than a mere undulation in the ground. The relationship between the enclosure and this internal mound is not documented, and the enclosure's function remains unspecified. Circular earthen enclosures of this kind in Ireland can serve many purposes across a wide span of prehistory and early medieval history, from ringforts used as defended farmsteads to ceremonial or burial enclosures of considerably older date. The proximity to St Brendan's Well, a holy well associated with the early Christian saint Brendan of Clonfert, adds another layer of uncertainty. The enclosure was recorded on Ordnance Survey maps of both 1842 and 1897, which confirms it was a legible feature of the landscape through the nineteenth century, though whether those mapmakers understood what they were tracing is another matter entirely.