Hachures, the short radiating lines cartographers used to suggest slopes or depressions, can indicate anything from a natural hollow to an earthwork of considerable age. This one turned out to be neither ancient nor especially dramatic: when the site was inspected in 1985, it proved to be a disused quarry, partially infilled and long since abandoned.

The quarry dates to after 1700, which places it within the era of organised stone extraction that accompanied road-building, estate construction, and the slow expansion of rural infrastructure across eighteenth and nineteenth-century Ireland. Because it falls outside the prehistoric and early medieval period, it sits beyond the formal scope of archaeological classification, occupying that unremarked middle ground of post-medieval industrial activity that rarely attracts much attention. Quarries of this kind were once scattered across the Irish landscape, opened to supply local needs and closed again when those needs passed, leaving only a scar in the ground that maps might preserve long after memory of them fades.