The markers are small, averaging roughly fifteen centimetres high and eighteen centimetres wide, uninscribed stones that identify no one and record nothing legible. This is a killeen, a type of unconsecrated burial ground used in Ireland for centuries to inter those who could not, under Catholic Church law, be buried in consecrated ground. Unbaptised infants made up the vast majority of those interred in such places, though suicides and shipwrecked strangers were sometimes buried here too. The word killeen derives from the Irish "cillín", a diminutive of "cill", meaning church, and these sites are found across the country, often at the margins of fields or within older enclosures, their presence quietly acknowledged rather than formally commemorated.

At Ahane, the burial ground sits within an enclosure, with the modern burial area occupying its central portion. Alongside the small anonymous stones, the site contains a cross-inscribed slab and a large boulder identified locally as a mass-rock. Mass-rocks are boulders or flat stones used as improvised outdoor altars during the Penal Laws of the seventeenth and eighteenth centuries, when the public practice of Catholicism was prohibited and priests conducted services in remote locations to avoid detection. The co-existence of a killeen and a mass-rock within the same enclosure suggests a landscape that held layered, informal, and sometimes clandestine religious significance for the local community over a long period.