At its peak the group numbered at least 245 stones spread across two adjoining townlands, Timoney Hills and Cullaun, with five cairns also recorded. By 1984, 70 of those stones had been removed entirely, and the cairns were gone too. What remains still impresses: more than 200 uprights of red sandstone and conglomerate, ranging from roughly one to nearly two metres in height, standing with no apparent organised arrangement, save for one stone circle identified in the Cullaun townland.

When the Inspector of National Monuments surveyed the site between 1934 and 1936, he recorded 221 surviving stones and mapped them individually, including five already lying flat in one field alone. His description was unambiguous about their collective effect: a most remarkable group. The stones are broadly consistent in material and scale, which might suggest a coherent prehistoric programme, yet their distribution follows no obvious astronomical or geometric logic that has been identified. A further complication is their setting within the landscaped estate of Timoney Park, once the property of the Parker-Hutchinson family. That context has led some to question whether all the stones are genuinely ancient monuments or whether estate landscaping played some role in their current arrangement or numbers. The individual stone recorded here, square in section and standing 1.4 metres high, shows no packing stones around its base, which is the kind of detail that can quietly matter to those trying to establish whether a stone was set deliberately into the ground in prehistory or moved at a later date.

The stones sit in pasture rather than on open moorland, so the landscape feels domestic rather than remote. Visitors approaching across the fields will find the stones relatively modest in height individually, but it is the sheer accumulation of them across the ground that makes the place unusual. The stone circle in Cullaun offers the one instance of a recognisable formal arrangement within the wider scatter.