The small limestone uprights that stand across the eastern half of the interior carry no inscription, no date, no identity. They mark something, but they do not say what. It is the western half of the enclosure, however, that carries the heavier silence: three large ridges running north to south, with hollows between them, which may represent a mass grave from the Famine years.

The Famine of the late 1840s killed roughly one million people in Ireland and forced the emigration of at least as many again. In towns like Tuam, which lies in County Galway, the dead frequently overwhelmed existing burial infrastructure, and the hastily interred were sometimes laid in long communal trenches rather than individual plots. That pattern, of parallel ridges with intervening depressions, is a feature that has been identified at a number of suspected Famine burial grounds across the country. The graveyard at Ballymoat fits that pattern closely, though the identification remains provisional. The enclosure itself is roughly 47 metres north to south and 36.5 metres east to west, bounded by a modern stone wall. A blocked-up entrance in the north wall suggests the site has been closed off and left undisturbed for some considerable time.