This linear feature, probably a section of fish trap wall, measures some 40m and is orientated east to west. It is located some 20m south of Fish Trap 4 (NPRN 518230). Other fish traps in the Llanon complex consist of dry stone walls, a single boulder high. It is probable that this fish trap is of similar construction.

Sources include:
Environment Agency, 2012, LIDAR data

Maritime Officer, RCAHMW, February 2011