This fish trap is visible on historic (1947) aerial photographic coverage. It comprises a gently curving line of stones with its apex pointing seaward, and measures approximately 270m from end to end.

Event and Historical Information:
The adjacent fish trap, 518202 (Conwy Marsh Fish Trap 4) is referred to as 'Cored Faelgwn' on an 18th century Admiralty chart. This feateure may represent later or earlier phases of use.

Sources include:
CPE/UK/1939 Frame No 3213

Maritime Officer, RCAHMW, January 2011.