The stone in question has been shaped by hand into a rough cross form, measuring roughly 55 centimetres in height and 46 centimetres in width, and one of its faces bears an incised equal-armed cross. It is the kind of object easy to walk past without registering what it represents.

The enclosure, known as Kilbeg or An Chill Bheag, lies about 30 metres east of Kilmore and contains several such stones, including a bullaun stone, which is a boulder or slab with one or more deliberate cup-shaped depressions, often associated with ritual or healing practice. Together, these cross-inscribed stones are thought to correspond to penitential stations recorded on the Ordnance Survey maps, places where people would stop, pray, and sometimes kneel or circle as part of a prescribed act of penance. This practice, sometimes called a pattern, was once common across Ireland and often took place at early ecclesiastical sites. The survey of the Corca Dhuibhne area carried out by J. Cuppage and published in 1986 documented the site and its stones as part of a wider archaeological record of the peninsula.