At its greatest recorded extent, the group numbered 245 stones spread across two adjoining townlands, Timoney Hills and Cullaun, with five cairns also present. By the time a formal survey was carried out in 1934 to 1936, some 70 stones had already been removed, along with all five cairns. The stone recorded here, a modest rectangular slab of roughly 76 centimetres in height, is just one survivor among what remains of a landscape that was once extraordinarily dense with these monuments.

When the Inspector of National Monuments documented the group in 1936, he counted 221 stones still standing or lying in situ, 173 in the townland of Timoney Hills and 48 in the neighbouring townland of Cullaun. His description noted that the stones, all of red sandstone or conglomerate, stood between roughly 0.9 and 1.8 metres in height and appeared to follow no particular arrangement, with one exception: a single stone circle visible in Cullaun. That lack of obvious system is itself curious. Most comparable prehistoric groupings, however irregular they appear, eventually yield some pattern under analysis. Here, the stones seem genuinely dispersed, which has led to a significant complicating question. The entire group sits within the landscaped estate of Timoney Park, the former property of the Parker-Hutchinson family, and that setting has prompted doubt about whether the monuments are truly ancient or whether some or all of them were placed, arranged, or augmented during the estate's landscaping history. No definitive answer has been established either way.