What actually stands in a small copse of coniferous trees on level pasture at Brookpark is something considerably harder to categorise. Five small upright stones, none taller than 0.65 metres and none wider than 0.6 metres, sit together forming no particular pattern. The label on the 1842, 1904, and 1938 six-inch maps persisted for nearly a hundred years before anyone officially acknowledged that these stones are simply anomalous, belonging to no recognised monument type.

The word "anomalous" in the formal description is quietly significant. Cork is unusually rich in genuine stone circles, particularly the distinctive five-stone circles that are a regional speciality of the Cork and Kerry uplands, where a recumbent stone lies between two tall portal stones in a compact but clearly intentional arrangement. The Brookpark group shares nothing obvious with that tradition. Its five stones vary considerably in size and appear to have been placed, or to have settled, without any discernible geometry. Whether they are the collapsed or displaced remnant of something once more structured, or whether they were never part of a formal monument at all, remains unresolved. A standing stone recorded in the adjoining field to the south adds a further layer of interest to the immediate landscape, suggesting that whatever significance this corner of the Musheramore foothills once held, it was not limited to a single feature.

The site sits on the northern slope of Musheramore Mountain, sheltered within a small plantation. The stones themselves are modest in scale, and a visitor unfamiliar with the site might pass them without pause. What makes the detour worthwhile is less the stones themselves than the question they leave open, namely why three successive generations of map-makers, surveying the same ground across nearly a century, kept reaching for the same confident label.