What survives is modest but legible: a front wall of random rubble, the stones laid without dressing or regularity, still holding an arched recess roughly a metre and a third high, two and a half metres wide, and around two and a half metres deep. At the rear, overlapping stones are just visible beneath overgrown vegetation, and on the top of the mound a circular depression marks where the funnel once sat, the opening through which limestone and fuel were loaded from above.

Lime kilns were once a commonplace feature of the Irish agricultural landscape. Limestone was burned at high temperatures to produce quicklime, which was then spread on fields to reduce soil acidity and improve fertility. A kiln built into a quarry face made practical sense: the stone to be burned was immediately at hand, and the hillside provided natural insulation as well as a convenient loading point at the top. The design seen here, with an arched draw hole at the base for raking out the burned lime and a funnel above for charging the kiln, was a standard form across much of rural Ireland from the seventeenth century onward. This particular example, sited within the quarry itself, has the feel of a working installation rather than a decorative or civic structure, built for a specific agricultural need and then left when that need passed.