At Gortadroma in County Limerick, the Ordnance Survey's 1923 six-inch map records a small hachured mound, roughly four metres in diameter, sitting about twenty metres to the south-west of a nearby castle. Hachured markings on OS maps typically indicate a raised earthwork of some kind, possibly a burial mound, a platform, or a feature associated with an adjacent fortification. Whatever its original purpose, the mound is gone. Gravel quarrying has removed it entirely, along with any surface evidence that it ever stood there.

The record was compiled by Denis Power and uploaded to the Sites and Monuments Record in August 2011. By that point, the landscape had already been significantly altered. What the quarrying inadvertently revealed, however, adds a layer of interest to what might otherwise seem like a straightforward case of loss. Exposed in the face of the gravel quarry are the foundation courses of two walls, set approximately eight metres apart. These walls, visible only because extraction cut through them, suggest that some kind of structure once occupied this ground, its upper portions long gone and its lower courses preserved almost by accident beneath the surface. Without excavation, it is impossible to say what the walls belonged to, how they related to the mound, or when they were built.

There is nothing to see at ground level in the conventional sense. The mound is gone, and the castle nearby, recorded separately in the monuments register, is the more obvious feature of the area. The interest here is archaeological and cartographic rather than visual; the site rewards those who come with the 1923 OS map in hand and an awareness of what once appeared on it. The quarry face where the wall foundations are visible is the only remaining physical trace of whatever complex of features once occupied this corner of east Limerick. Access to active or former quarry land should always be approached with care, and permission sought from landowners before attempting to inspect the exposed stonework.