But this particular slab, rectangular in cross-section and leaning slightly to the south, carries with it a small historical puzzle: it does not appear on the Ordnance Survey's six-inch map of 1842, which was otherwise a remarkably thorough document of the Irish landscape. Whether it was simply overlooked by the surveyors, obscured by vegetation, or already toppled and later re-erected is unknown. It remains in pasture today, orientated along a northeast-southwest axis, roughly 1.95 metres high and just 35 centimetres wide.

Standing stones of this type are among the most enigmatic monuments in the Irish countryside. They are generally prehistoric in origin, though precise dating is rarely possible without excavation, and their purposes remain debated: territorial markers, memorial stones, ritual focal points, or aids to astronomical alignment have all been proposed over the years. The townland name, An Chúil Cham, meaning roughly "the crooked corner" or "the bent recess" in Irish, adds a faint layer of intrigue, though whether the name relates in any way to the stone itself or simply to the topography of the valley is impossible to say. The Toon River valley setting is quietly significant; river valleys were often favoured locations for prehistoric activity, offering both practical resources and, perhaps, symbolic associations.