3. There is hereby designated as an environmentally sensitive area the area of land in the Lleyn Peninsula in the County of Gwynedd which is shown coloured yellow on the maps contained in the volume of maps marked “volume of maps of area in the County of Gwynedd designated by the Environmentally Sensitive Areas (Lleyn Peninsula) Designation Order 1987”, dated 17th November 1987, signed by the Minister of State, Welsh Office and deposited at the offices of the Welsh Office Agriculture Department, Plas Crug, Aberystwyth, Dyfed SY23 1NG.