What survives of this enclosure at Gortlemon is not walls or earthen banks in any recognisable sense, but a scarp, a low edge in the terrain, curving around from the west, sweeping northward, and continuing east. That arc, roughly 34.8 metres across on its east-west axis and 18 metres on its north-south, is the surviving geometry of a structure whose original form and purpose are no longer legible from the surface alone.

Enclosures of this kind are among the most common and most ambiguous monuments in the Irish landscape. They may have served as enclosed farmsteads, as ceremonial spaces, or as enclosures for livestock, and without excavation it is rarely possible to say which. What has happened to this one is a familiar story: a field boundary bisects the monument at both its eastern and western edges, and south of that boundary, no surface trace survives at all. The agricultural reshaping of the land has effectively removed or buried half the monument, leaving only the northern arc of the scarp still legible in the grass. The marshy quality of the ground may, paradoxically, have helped preserve even this much, since waterlogged conditions can inhibit the kind of deep ploughing that erases earthworks entirely.