A particular standing stone recorded in the 1930s as stone 4A on an official survey map has since vanished entirely, leaving no surface trace in the undulating pasture of the Timoney Park estate where it once stood. It was one small piece of something much larger, a scattered grouping that, even in its depleted state, prompted the Inspector of National Monuments to describe it in 1936 as "a most remarkable group".

At their most complete, the standing stones of Timoney Hills and the adjoining townland of Cullaun numbered somewhere between 221 and 245, depending on when and how they were counted. The 1984 Archaeological Survey of Ikerrin mapped 245 stones, but noted that 70 had already been removed, along with five cairns. By the time of the 1934 to 1936 inspection, 221 remained, ranging from roughly 0.9 to 1.8 metres in height, all of red sandstone or conglomerate. The inspector noted they did not appear to follow any obvious arrangement, with one exception: a single stone circle in Cullaun that stood apart from the general scatter. What purpose the broader grouping served, if it was ever a coherent monument at all, remains unclear. That uncertainty is deepened by the fact that the stones sit within the landscaped grounds of Timoney Park, the former estate of the Parker-Hutchinson family, and their presence on managed demesne land has led some to question whether the monuments are genuinely ancient or whether they were, at least in part, arranged or augmented during the estate's landscaping. It is a doubt that has never been fully resolved.