What makes the site genuinely puzzling, beyond the sheer number of stones, is that nobody is entirely sure what they are. Unlike the great megalithic alignments of the west of Ireland, these stones appear to follow no obvious arrangement or astronomical logic. They simply stand, or in some cases lie, across the landscape in patterns that have resisted easy interpretation for generations.

When the Inspector of National Monuments surveyed the area in 1934 to 1936, he counted 221 stones still in place across the two townlands, with 173 in Timoney Hills and 48 in the adjoining townland of Cullaun. He described them as "a most remarkable group," noting that they all appeared to be of red sandstone or conglomerate, ranging from roughly 0.9 to 1.8 metres in height, with the larger examples averaging around 1.5 metres. A later survey published in the Archaeological Survey of Ikerrin by Stout in 1984 mapped 245 stones in total, though 70 had by then been removed, along with five cairns, stone mounds associated with burial or territorial marking, that have also since disappeared. One individual stone in this group measures just 0.82 metres in height, square in section, and notably lacks the packing stones typically found wedged around a megalith's base to keep it upright, a detail that sits uneasily against straightforward prehistoric classification. The entire group sits within the landscaped grounds of Timoney Park, the estate of the Parker-Hutchinson family, and that setting has prompted scepticism among researchers about whether all, or even most, of the stones are genuinely ancient monuments or whether some may have been placed or rearranged as estate embellishments during the eighteenth or nineteenth century. The question remains open.