This 'C' shaped fishtrap is visible on historic Ordnace survey mapping (1886-1925). It consists of a curving stone wall, extending from boulders near the low tide line. It curves some 140m in a westerly direction and terminates some 100m from the high tide line, pointing shoreward. The fish trap was first recorded during RCAHMW aerial reconnaissance, and then on regular subsequent occassions. It has now been scheduled.

Sources include:
Morris, L, 1740, Plans of the Harbours, Bars, Bays and Roads in St Georges Channel, plate 4
Ordnance Survey, 1886-7, First edition 25inch
Ordnance Survey, 1889, Second edition 25inch
Ordnance Survey, 1914-25, Third edition 25inch

T. Driver, RCAHMW, 26 June 2007.