The site is known as a calluragh, a term for an unconsecrated or informal burial ground, often associated with unbaptised infants or those excluded from sanctioned church burial. What makes this particular example unusual is the discrepancy between how it appeared on Ordnance Survey maps, where it was recorded as circular in outline, and how it was measured in the Ordnance Survey Name Books: roughly 15 metres long, 4.5 metres wide, and 1.2 metres high. Those dimensions describe something more elongated than circular, suggesting either a change over time or simply the difficulty of reading a low, grassed-over feature from the ground versus a surveyor's plan.

The site gave its name, or rather preserved the name, of the townland of Cill An Urdráin, with "cill" being the Irish word for a church or early ecclesiastical enclosure. The church itself, from which both the burial ground and the townland are thought to take their name, is recorded as a separate feature, though what remained of it is unclear. By 1982, the field containing the burial ground was cleared and deep-ploughed, an act that would have caused significant and irreversible damage to any subsurface remains. That a place which held the name of an entire townland could be effectively erased within living memory, quietly and without ceremony, is the quietly unsettling detail at the centre of this site's story.