The site is a cillín, the Irish term for an informal burial ground used for unbaptised infants and others excluded from Catholic churchyard burial, and it survives in a quiet, unenclosed L-shaped area measuring roughly nine metres by four metres, its graves marked by limestone blocks set into the earth and aligned east to west in the manner of Christian burial.

These informal burial grounds are scattered across Ireland in their thousands, often occupying liminal places: the edges of fields, the banks of rivers, old ring-fort interiors, or, as here, the remnant of a geological feature that quarrying has gradually eaten away. The reference recorded by O'Flanagan in 1927 places this site within a broader tradition of landscape use in County Galway that stretches back centuries. The choice of a hummock, a small rise in the ground, was not unusual; elevated or otherwise distinct landforms were often selected for these burials, perhaps because they were already understood as boundary places, neither fully in use nor fully abandoned. The quarrying that has encroached from the north-west is a reminder of how easily such sites are lost, their significance invisible to an industry that sees only the stone beneath.