The structure is subcircular in plan, measuring roughly 26.6 metres across its north-west to south-east axis, though the wall that defined it has fallen to the point where the overall shape is now difficult to read from ground level. What remains is essentially a rubble scatter following a curved line, the bones of an enclosure that would originally have protected a farmstead, its inhabitants, and their livestock.

Cashels of this type are associated broadly with the early medieval period in Ireland, roughly the fifth to twelfth centuries, when enclosed farmsteads were the dominant form of rural settlement across the island. Thousands survive in varying states of preservation, particularly in the west of Ireland where stone was more readily available than timber. The example at Maghera More sits in a landscape where such sites are not uncommon, but its position on a hillside slope, with the collapse of its defining wall pulling the structure into something only a careful eye would recognise, places it among the quieter, less legible survivals of that long agricultural tradition.