Hachures, the short radiating lines cartographers once used to indicate slopes and depressions, caught the attention of a later surveyor, who went out to take a look. What they found was a disused gravel pit, unremarkable in itself, but a small reminder of how much local industrial and agricultural activity once left its mark on the Irish landscape before fading from memory almost entirely.

The 1947 to 1948 revision of the OS six-inch series was one of the last great systematic attempts to capture Ireland's countryside at that scale, recording field boundaries, structures, and earthworks that were already beginning to disappear. A gravel pit of this kind would typically have served purely local needs, supplying material for road maintenance or farm use, worked by hand and abandoned once the accessible deposits were exhausted or the need had passed. By the time anyone came to inspect this one in Ballyglass, it had long since returned to the quiet of the surrounding landscape.