Ring barrows are among the quieter presences in the Irish archaeological landscape: circular burial mounds, typically from the Bronze Age, defined by a central raised or flat area, a surrounding ditch, and an outer bank of earth. What makes the example at Moanmore unusual is not any single dramatic feature but rather the way it clusters with its neighbours, one abutting it directly to the west-southwest, another sitting roughly seventy metres to the north-east, the three forming a loose funerary grouping in ground that has probably been wet and difficult to work for millennia.

The monument itself is modest in scale. A circular area of just four metres in diameter is enclosed by a scarped edge, a deliberately cut or shaped slope, roughly seven centimetres in height, with a shallow fosse, that is, a surrounding ditch, and an external earthen bank beyond it. The bank measures about three metres across in total, though it rises only fifteen centimetres above the surrounding ground. That barely-there quality is part of what makes it interesting: along the south-east to north-west axis, the bank has all but disappeared into the landscape, and on the west-southwest side it merges directly with the outer bank of an almost identical ring barrow next door. The two monuments effectively share their earthworks at that point, suggesting either that they were constructed in close sequence with full awareness of one another, or that centuries of agricultural activity have gradually folded them together. Mark Keegan identified the monument during a field survey on 25 January 2005, by which point the interior was level and free of overgrowth, making its circular outline legible despite the surrounding damp pasture.