At first glance the sheer number of them is arresting: surveys have counted well over two hundred stones spread across two adjoining townlands, Timoney Hills and Cullaun, with a further handful of cairns recorded before their removal. The particular stone catalogued as 5K1 stands about 1.5 metres tall, rectangular in section and oriented along a north-northwest to south-southeast axis, cut from the same red sandstone or conglomerate as all its neighbours.

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. He noted that they did not appear to follow any obvious arrangement or geometric plan, with one exception: a single stone circle was identifiable in Cullaun. By 1984, a map published in the Archaeological Survey of Ikerrin recorded 245 stones in total, of which 70 had already been removed, along with five cairns. That figure suggests both how extensive the original spread once was and how steadily it has been eroded. The stones range from roughly 0.9 to 1.8 metres in height, all drawn from the same geological material, which implies at minimum that whoever placed them was working within a consistent local tradition. What complicates any straightforward reading of the site, however, is its setting on the Parker-Hutchinson estate of Timoney Park. The landscaped character of the grounds has led to genuine uncertainty about whether these are prehistoric monuments or features introduced during the improvement and ornamentation of a private demesne, a question that, as things stand, remains unresolved.