At its greatest recorded extent, the group ran to 245 stones, along with five cairns, stone mounds typically associated with prehistoric burial. By the time a formal survey was carried out in the 1930s, 70 stones and all five cairns had already been removed. The one recorded in this field, a rectangular slab of roughly one metre in height and oriented east to west along its long axis, is just one of 46 identified in this particular area, itself a subset of a total of 221 stones that were mapped across both townlands.

The Inspector of National Monuments recorded the group between 1934 and 1936, noting that the stones, all of red sandstone or conglomerate, stood or had stood between roughly three and six feet above ground, with the larger examples averaging around five feet. What struck the Inspector was the apparent absence of any deliberate arrangement. Unlike the stone circles and alignments found elsewhere in Ireland, where prehistoric intent is more legible, the Timoney stones do not conform to any obvious pattern, save for one stone circle identified in Cullaun. That ambiguity feeds a larger question hanging over the whole site. The stones sit within the landscaped estate of Timoney Park, historically associated with the Parker-Hutchinson family, and their presence on a manicured private demesne has led some to doubt whether the monuments are genuinely ancient or whether at least some were arranged or introduced during the improvement of the estate grounds, a not uncommon practice among landed families of the eighteenth and nineteenth centuries who had a taste for antiquarian atmosphere.

The uncertainty does not make the stones less worth attention; if anything, it makes them more interesting. A landscape that might be prehistoric, might be partly invented, and might be some combination of both sits in a different category from a straightforward ancient monument. The scale of what remains, even depleted, is considerable, and the red sandstone slabs standing quietly in the grass carry the ambiguity with them.