The hummock itself has been partially quarried away at its north-eastern edge, which gives the site a slightly diminished, eroded quality, as though the land has been quietly encroaching on the memory it holds.

Places like this are known in Ireland as cillíní, informal burial grounds used for unbaptised infants and others excluded from church cemeteries under Catholic practice. They occupy liminal spaces across the Irish landscape, edges of townlands, old ringforts, isolated hillocks, or ground considered marginal for one reason or another. The Cloonoo example is modest in scale, measuring roughly four metres north to south and three metres east to west, with no enclosing wall or ditch to define it from the surrounding land. The ten stones are unworked, meaning they were not shaped or inscribed, simply set into the ground as quiet markers. The absence of ornamentation is typical of these sites, where grief was expressed through placement rather than inscription.