One of them, catalogued in the 1930s as stone 5B2, no longer has any visible surface remains at all. It has simply vanished into the field, leaving only its entry on an old map to confirm it was ever there.

When the Inspector of National Monuments surveyed the area in 1934 to 1936, he counted 221 stones still standing across the two adjoining townlands of Timoney Hills and Cullaun, noting that they ranged from roughly three to six feet in height, with the larger ones averaging around five feet. He described them as a most remarkable group, while acknowledging they appeared to follow no particular arrangement, save for one stone circle identifiable in Cullaun. A later map produced for the Archaeological Survey of Ikerrin, published by Stout in 1984, recorded 245 stones in total, but noted that 70 had already been removed, along with five cairns that have also since disappeared. That steady attrition makes the question of origins all the more difficult to resolve. The stones sit within the landscaped grounds of Timoney Park, the former estate of the Parker-Hutchinson family, and that setting has led some to question whether all of them are genuinely ancient monuments or whether some were introduced during the ornamental landscaping that was fashionable among improving landlords in the eighteenth and nineteenth centuries. No firm answer has been established, and the doubt itself has become part of what makes the site so peculiar.