Many of the stones barely break the surface of the grass; some stand upright, others lie flat or seem to have simply settled into the sod over generations. Taken together, they form a dense, roughly rectangular spread of about seventeen metres by fifteen metres, with a low, irregular stony mound at its northern edge, partly absorbed by turf. There are no inscriptions visible, no formal enclosure, nothing to announce what the ground contains.

This is a cillin, the kind of informal burial ground used in Ireland for centuries to inter unbaptised children, who were excluded by Catholic doctrine from consecrated church ground. These sites, often occupying marginal or liminal locations, boundaries, old ringforts, or quiet rises in fields, were maintained outside official religious structures and frequently passed out of active use without ever being formally recorded. The Rockfield site was named plainly and without euphemism on the Ordnance Survey six-inch map of 1838, appearing simply as "Children's Grave Yard". By the time the next major edition was produced in 1917, the designation had shifted slightly to "Children's Burial Ground (Disused)", suggesting that within living memory of that revision the site had already fallen out of use as a place of burial. The shift in wording captures something of the slow process by which these places moved from active, if unofficial, use into a kind of archaeological silence.