This one, in a rough grazing field in Ceathrú An Lisín, measures somewhere between five and seven metres across and rises no more than thirty centimetres at its highest point. Small, inconspicuous, and not yet fully understood, it has nonetheless been recorded as a possible monument, meaning it may represent deliberate human construction from some earlier period rather than a natural accumulation.

The mound came to attention during the AranLIFE Farming Project, a survey initiative running from 2014 to 2018 that examined the agricultural and archaeological landscape of the Aran Islands in detail. It sits at the north-western end of its field, and its structure is best preserved along the eastern to southern arc, tapering away towards the north-west. Whether it was once a burial mound, a field boundary feature, or something else entirely remains an open question. The qualifier "possible monument" reflects that uncertainty honestly; the Aran Islands are dense with archaeology, and not every earthwork can be readily categorised without excavation.