Coflein description:
The Ridge Dyke which runs across the Cefn Man Moel ridge comprises an earthen bank measuring approximately 270m in length by about 5m in thickness and up to 0.7m in height. The associated ditch, situated to the north-west of the bank, measures about 2.5m in width and about 0.6m in depth. It is not always evident why cross ridge dykes were built, but the monument has been variously interpreted as a boundary defining political influence or a boundary marking land allotment within communities.