Gwynedd Archaeological
Trust Regional Historic Environment Record
Fish Trap, Llandona
Primary Reference Number (PRN) : 7204 Trust : Gwynedd Community : Llanddona Unitary authority : Ynys Mon NGR : SH57258123 Site Type (preferred type first) : UNKNOWN FISH WEIR Status : Scheduled Monument
Description : A stone 'V'-shaped fish trap, partly below the low water mark. It is recorded on Lewis Morris' map of 1748 and on the 1919 25 inch OS map. This is a well-known fish-trap of type D - a linear extended V, and has already been planned, being marked on the 1919 OS 25 inch map (Anglesey XIV. 4). However, the AP shows a new detail of the structure, showing that it has a double line, either the way it was constructed or evidence of a rebuild or separate phase. <3>
A roughly crescent-shaped trap comprising two slightly curving arms, one 120m in length running at 135 degrees (internally in relation to the trap) from the shore and the other extending to 225m and running diagonally across the bay. The gorad runs from the shore at the eastern end of the bay and the apex extends to just below mean low water. The long arm is the best preserved and retains some internal facing. Elsewhere it is ruinous and about 3m wide. The apex end of this arm is more strongly built than the shoreward and a thickening 85m from the apex may mark the remains of a structure. There is also a definite kink in the line of the wall at this point. Marked on Lewis Morris chart of 1748. (Hopewell, 2000).
