No earthwork, no raised outline, no trace of a boundary survives at the surface, yet the site almost certainly underlies a 12th-century church known locally as Templemolaga, and the whole complex sits within what was once a place of considerable religious and political importance in early medieval Ireland.

The church at Aghacross is traditionally associated with St Molaga, who according to local tradition was born around 590 AD at a place called Liathmuine, not far away. Molaga is a figure known from several early Christian sites across Munster, and the dedication here is consistent with a pattern of founding churches close to a saint's birthplace or sphere of influence. The site was described in the medieval territorial survey known as Crichad an Chaoilli as the chief church of the Tuath O Cuscraidh, meaning it served as the principal ecclesiastical centre for that local territory or tuath, the basic unit of early Irish political organisation. That status suggests it once carried real weight in the religious life of north Cork, even if nothing visible now signals that significance. Associated with the site is a bullaun stone, a large boulder bearing one or more rounded, cup-shaped depressions hollowed out by hand, objects found at many early Christian sites in Ireland and often linked to ritual use or the veneration of a saint.