The monument is a ring barrow, a type of Bronze Age funerary enclosure in which the dead were buried within a roughly circular area defined by a surrounding ditch, known as a fosse, and an external bank of upcast earth. This particular example measures just under ten metres across, its bank still standing around half a metre to a metre in height depending on which side you approach. Two causeways break the circuit, one to the east and one to the west, giving the impression of deliberate orientation. A separate linear bank extends roughly fourteen metres northward from the outer edge, its purpose unclear, though such features are not unusual in association with burial monuments of this type.

By the 1840s, when Ordnance Survey fieldworkers were recording local place names and features, the site was known as Lisheenatumpaun, and a flat stone was noted lying on the surface at its centre. The name contains the Irish word lios, which ordinarily refers to a ringfort rather than a burial monument, suggesting that by then the original function of the earthwork had been forgotten and it had been absorbed into the broader local vocabulary for circular enclosures of any kind. This interpretation persisted into the twentieth century: a manuscript compiled in the 1940s as part of a nationwide schools folklore project appears to reference the same feature, describing it as a lios on land belonging to a man named Michael Kelliher. The monument's southern bank has since been incorporated into a working field boundary, and coniferous trees have taken root in and around the enclosure. A second ring barrow lies approximately twenty metres to the north-east, hinting that this slope once held greater significance as a place set aside for the dead.