On the 1921 edition of the Ordnance Survey six-inch map, it appears with hachures, the short radiating lines cartographers use to suggest a hollow or raised feature in the landscape. That ambiguity was enough for it to be classified as an enclosure, a catch-all term in archaeological recording that can cover anything from a prehistoric ringfort to a field boundary of uncertain date. The earlier Ordnance Survey twenty-five-inch map from 1896, however, is more direct: it labels the same feature a disused gravel pit.

The site was carried into the Sites and Monuments Record in 1992 and the Record of Monuments and Places in 1996 under the category of enclosure, a classification that says more about cartographic ambiguity than about any confirmed archaeology. Mooghaun itself is notable ground, known primarily for the large Iron Age hillfort nearby and for the Mooghaun Hoard, one of the largest hoards of Bronze Age gold objects ever found in Europe, which came to light in the townland in 1854. Whether that broader significance lent the gravel pit any unwarranted archaeological gravity when the maps were first being assessed is impossible to say, but the revision of its status to a quarry reflects the more sober reading of the evidence.