Earthworks showing old field boundaries in the field immediately south of the farm yard at Nantgwynfynydd-Isaf. The farm is situated about a mile north of Derwen Gam (Oakford), which is about four miles south east of New Quay. The field measures approximately 450 metres by 250 metres. Discovered during the Royal Commission's programme of archaeological aerial reconnaissance conducted by Toby Driver on 2nd November 2015.
M. Ryder, RCAHMW, 21st September 2018.