prehistoric standing stone (one of many such on Anglesey). The stone is high, with a further 19 in (0.5m) below ground and weighs 4.6 tons. In 2009 it had keeled over, and in 2010 it was lifted and re-set in position by Gwynedd Archaeological Trust under the guidance of Cadw. When removed from its socket, some 20 packing stones were found around its base, one of which had two 'pecked' engravings, a cupmark and a cup and ring mark. The engraved stone is now at Oriel Ynys Môn Museum, Llangefni. Such rock engravings are very rare in North Wales, and its use as part of the construction of the standing stone implies a particular, if unknown, significance. It is Located at , . Llanfechell Triangle The Llanfechell Triangle Standing Stones are a group of three prehistoric standing stones at , . They are all around high with their long axis aligned NW-SE. They are thought to date to the Bronze Age. Pen-y-Morwydd Barrow Pen-y-Morwydd Barrow, is a burial mound, probably from the Bronze Age, on the top of a hill between Llanfechell and Bodewryd. It is across, and high, crossed by a modern wall. A footpath from Rhosbeirio crosses the mound. (Location: , ) Llifad enclosure Llifad enclosure is a later prehistoric pentagonal enclosure, across. It is a possible defended settlement a few hundred metres south of Pen-y-Morwydd Barrow, on the same hill, towards Carreglefn. Location: , Other archaeological sites In addition to the scheduled sites, a range of other archaeological and historic sites are known: Hilltop enclosure at Carog This has Neolithic settlement evidence with a circular defensive ditch dated to 800BC. Also 800-900AD house and domestic artifacts, excavated in 2010. Location: Burial chamber at Foel Fawr or Stones near Cromlech Farm (It may just be a 'suggestive natural feature'). Location: Mynydd Groes Earthwork a field enclosure, largely cleared. Location: Pen-y-Morwydd Pillow Mounda medieval constructed rabbit warren. Up to 7 are recorded at this site, most no longer visible. Location: Enclosure north-west of Llanfechell, roughly square, 16 yards across. Location: Tai Hen Cropmark Enclosure An irregular rectilinear enclosure some 50 yards across Location: Pont-y-Plas Bridge a road bridge with square headed arches and steps to the water. Location: Meddanen Water Mill and Melin Mechell Windmill (also known as Minffordd Mill and Melin Maen Arthur). Location: (these two Medieval mills are close together so could have been worked by the