A ring barrow is a burial monument of the Bronze Age, consisting of a central mound or platform enclosed by a circular bank and ditch, and this example at Clahane follows that form closely, though time has softened its edges considerably. What makes the location quietly arresting is the view it commands: a wide panorama sweeping from north through west to south, which suggests whoever chose this spot did so with some deliberate intent, whether territorial, ceremonial, or both.

The monument has been partially denuded, meaning the original earthworks have been worn down through a combination of agricultural use, weathering, and the general attrition of millennia, but its essential structure survives. The enclosing bank is around six metres wide with an external height of roughly half a metre, and it wraps around an internal ditch averaging three metres across. At the centre sits a sub-circular platform measuring approximately ten metres east to west and eight metres north to south, raised about thirty centimetres above the base of the ditch. The bank appears to be built from a mixture of earth and stone, consistent with the limestone geology underfoot. The total footprint of the site runs to roughly twenty-eight metres by twenty-five metres. These dimensions were recorded by Michael Connolly during a survey of the Lee Valley area carried out in 1996 and 1997.