The quarry and the woodland together have conspired to make this ringfort one of the more elusive examples of its type, a monument that was already fading into the landscape by the time it was first formally recorded.

A ringfort, sometimes called a rath, is a roughly circular enclosure defined by an earthen bank and an outer ditch, most commonly associated with early medieval farmsteads in Ireland, typically dating from around the fifth to the twelfth century. The Garraunigerinagh example appears on the Ordnance Survey six-inch map of 1842, where it is marked as a hachured circle, the standard cartographic shorthand of the period for an earthwork. By the time surveyors examined it more closely, what remained was modest: a circular area measuring approximately 32 metres across, defined not by a pronounced bank but by a low, subdued undulation no more than 0.2 metres high on its interior face. A shallow external fosse, the ditch that would once have complemented the enclosing bank, survives to a depth of around 0.5 metres. The interior slopes gently southward, and dense vegetation now covers much of what remains. The quarrying that truncated the south-western arc introduced an industrial intrusion that predates modern heritage protections, and the exact extent of what was lost to it is difficult to assess.