This is a central section of the bank and ditch known as Cwys yr Ychen Bannog, NPRN 303652. There is a gap of about 570m, across a boggy area in very broad flat saddle, between its western end and NPRN 529403, the western section. The central section can be seen at SN73076148, from where it runs for 310m up the northwest face of a spur of Garn Gron, and ending at SN73356135, at the top of the slope. There is a gap of about 280 metres, across another boggy area between its eastern end and NPRN 529093, the eastern section. J.J. Hall, Trysor, 28 March 2013