The platform is roughly subrectangular in shape, running about twenty metres on its longer axis and rising some two metres above the surrounding ground. A drystone wall, now collapsed, once enclosed the site. What makes this place distinctive is what it was set aside for: it is a cillin, a children's burial ground of the kind once found across rural Ireland, used for the interment of unbaptised infants and others considered ineligible for consecrated ground under Catholic ecclesiastical law.

Cillíní were not marginal places in any casual sense. The theology behind them was severe: a child who died before baptism was held to be excluded from heaven, and so the Church withheld its burial rites. Families were left to inter their children quietly, often at liminal spots, the edges of townlands, old ringforts, early Christian enclosures, or raised ground with uncertain histories. The graves here at Dangan are oriented east to west, the traditional Christian alignment in which the dead face the rising sun and, by extension, the direction of resurrection. That detail speaks to the grief and piety of the families who used this ground, even as the Church kept them at a formal distance. The small uprights visible across the interior are uncut granite, modest and largely undifferentiated, which is typical of such sites throughout the west of Ireland.