The site at Gowerhass was recorded in both the Sites and Monuments Record of 1992 and the Record of Monuments and Places in 1996 under the category of earthwork, a broad label used for any feature visible as a raised or sunken landform. In this case, what the surveyors were reading from the maps was the characteristic hachured symbol, the short lines used in cartography to indicate a slope or scarp, that appeared on both the Ordnance Survey six-inch map of 1922 and the more detailed twenty-five-inch edition, where the feature was named plainly as a disused gravel pit.

When the site was inspected in 2002, the scarp that had originally prompted the earthwork classification turned out to be most likely connected not to any ancient activity but to the construction of a concrete yard immediately adjacent to the pit. The gravel pit itself was a working extraction site at some point, the kind of small-scale local quarrying operation that once supplied road-making and building materials across rural Ireland, before falling out of use. Its brief life as a scheduled monument illustrates how early heritage records, compiled from map evidence rather than ground survey, could inadvertently fold very ordinary industrial features into the same register as prehistoric enclosures and medieval earthworks.