Bank of Lime Kilns at Pentre Gwenlais Stone Quarry, Pentre Gwenlais Road (NE side)

Vast masonry bank of limekilns strongly battered at front and right end, built in randomly coursed rubble with red brick semicircular arches to the working areas. Prominently dated 1903 in brick over the left-hand of the three arches. Within each working area is a pair of deeply recessed and camber-headed working-holes. Formerly there were hoppers to the front through which the lime was drawn straight down into railway waggons; the upper parts of the chutes remain in situ. This mechanised loading of the quicklime accounts for the immense height of the structure. Across the front of the working areas is a communicating walkway with square-headed tunnels and stone lintels through the masonry piers. The kilns were charged from the platform at the top which has remains of a stone parapet. Reinforcement to left end.

Tall cylindrical kilns thickly lined with vitrified brick.