Located on the intertidal mud and sand to the N of Llanrhidian Marsh is a large rectilinear feature, crossing disused spotting post. It is possible to interpret the feature as a fish weir.
Created by Angela Walker on Lampeter Msc. student placement at RCAHMW, to extract intertidal/coastal sites from vertical air photo sources, chiefly sorties 106G/UK/1629 and 106G/Uk/1625.