Whether this arrangement is the work of prehistoric people or simply a farmer clearing stones from a field is a question that has not yet been resolved, and that ambiguity is rather the point. The boulder measures roughly 2.33 metres in length, 0.8 metres wide, and half a metre high, large enough to be deliberate, small enough to be incidental.

What tilts the balance towards something more intentional is the setting. The stones sit in the southern quadrant of a levelled enclosure, a roughly circular area of ground that has been deliberately flattened, most likely in prehistory. The ridge runs east to west and opens out in every direction onto the surrounding uplands, the kind of location that was consistently favoured for megalithic monuments, structures built from large stones and typically associated with burial or ceremony in the Neolithic and Bronze Age periods. Field clearance debris does get dumped against convenient boulders, but it tends not to accumulate at sites already marked by enclosures, and it tends not to occupy hilltops with views in all directions. The combination of the two features at Tullequane is enough to keep the question open.