A bank and ditch running NE-SW for c.830m, seeming to spring from the course of Senghenydd Dyke (Nprn307764) on the NE and running up to a marsh on the SW. The dyke faces NW from Senghenydd Dyke up to the point where it crosses Nant Corrwg, thereafter it faces SE.

(source Os495card; ST19SW11)

J.Wiles 03.02.03