What makes the site genuinely puzzling is not simply the number of stones but their arrangement, or rather the lack of any obvious one. They appear to follow no particular pattern, no alignment, no processional avenue, with the sole exception of one stone circle identified in Cullaun. The stone recorded here, rectangular in section and standing 1.1 metres high, is orientated north to south on its long axis. Beside it lies a recumbent stone, flat against the ground, which may originally have been a second upright that was moved at some point to its current resting place.

When the Inspector of National Monuments surveyed the area between 1934 and 1936, he counted 221 stones still standing or lying fallen across the two townlands, 173 in Timoney Hills and 48 in Cullaun. Even that number represented a diminished group. A later survey, published in the Archaeological Survey of Ikerrin by Stout in 1984, mapped 245 stones in total, of which 70 had already been removed, along with five cairns that have since disappeared entirely. All the stones are of red sandstone or conglomerate, ranging from roughly 0.9 to 1.8 metres in height, and the Inspector judged the surviving group to be, in his own words, "a most remarkable" assemblage. A complicating detail, however, is that the stones sit within the landscaped estate of Timoney Park, formerly the Parker-Hutchinson estate, and that setting has led some researchers to question whether all or some of the stones are genuinely prehistoric in origin, or whether the landscape was, at some point, arranged or augmented by estate owners with a taste for antiquarian atmosphere.