This circular arrangement of unhewn stones appears to be laid out deliberately to form an oval-shaped enclosure, measuring 2.7 m by 1.7m, the careful and orderly layout of the stones points to human agency. It is a reasonable assumption that this is a megalithic structure of a type which became common during the late Neolithic (i.e. New Stone Age) and early Bronze Age and which spread throughout the world. Similar structures are known in China and there is no reason why a stone circle should not occur in Hong Kong which is rich in Neolithic and Bronze Age artefacts. The purpose of the circle is not known, but possibly ritualistic.