Across two adjoining townlands, Timoney Hills and Cullaun, over two hundred stones of red sandstone and conglomerate rise between roughly one and two metres from the ground, with the average larger stone standing close to one and a half metres. With one exception, a stone circle in Cullaun, they appear to have been placed without any particular arrangement in mind. That irregularity, combined with their setting within the landscaped parkland of Timoney Park, has led some researchers to question whether they represent a genuine prehistoric monument at all, or something rather more recent in origin.

When the Inspector of National Monuments surveyed the group in 1934 to 1936, he counted 221 surviving stones, 173 in Timoney Hills and 48 in Cullaun, and described them as "a most remarkable group." Even then, some had already been lost. A later survey published in the Archaeological Survey of Ikerrin by Stout in 1984 identified 245 stones in total, of which 70 had been removed, along with five cairns that had also since disappeared. The estate in question belonged to the Parker-Hutchinson family, and it is the manicured, designed quality of Timoney Park that gives pause. Whether the stones were arranged or supplemented by the estate's owners at some point, or whether a genuine prehistoric scatter happened to fall within land that was later landscaped, remains unresolved. Adding further uncertainty, the specific stone marked 3P on the 1934 to 1936 map, within a cluster of 17 identified in one field, may simply be a large natural boulder rather than a dressed standing stone at all.