A boundary bank shown on the 1st, 2nd and 1953 1:10560 edition Ordnance Survey maps. It defined a field that extended the extant field system northwestwards up the valley. It was not rectilinear but measured approximately 550m northwest-southeast by 390m. The feature was not visited on the ground in 2007 as it lay within Radnor Range. J.J. Hall, Trysor, 29 February 2008