The wall itself is modest, loosely built from dry stone, standing somewhere between eighty centimetres and a metre in height and no more than a metre thick at its broadest point. A three-metre entrance gap opens to the north-north-east, accompanied by a low scarp in the ground. The interior measures roughly twenty-nine metres across, north to south, and just under that east to west, making it nearly but not quite symmetrical.

What makes this enclosure quietly puzzling is its relationship to the fields around it. It sits at the south-western end of a run of rectangular ladder-fields, the kind of long, narrow strip divisions associated with relatively modern agricultural improvement. Yet the enclosure may actually pre-date them. The later field walls have been built right up against it on multiple sides, at the north, south-south-east, south-south-west, west-south-west, and west-north-west, as though whoever laid out those boundaries simply worked around something already standing. It does not appear on the first edition of the Ordnance Survey six-inch map, the large-scale survey of Ireland carried out in the nineteenth century, but it does show up on the Cassini edition of 1915, which means it was a recognised feature of the landscape by the early twentieth century at the latest. Whether it served as a livestock pen, a small farmstead enclosure, or something older altogether is not recorded. The site sits on a level pasture terrace at the north-western foot of a limestone ridge, and that combination of terrain features, sheltered from the ridge, open to the shore, suggests a site chosen with some deliberateness, even if the purpose behind that choice has since been forgotten.