The tomb in Lligwy was created around 2500-2000 BC, at the end of the Neolithic era and served as a collective burial place for the agricultural community. The chamber was excavated during archaeological research in 1909. Inside, there were found unburnt human and animal bones, fragments of ceramics, numerous shells of snails and clams, and some flints. In general, the remains of fifteen to thirty people, both children and adults, were found in the chamber. Part of the ceramics seems to come from the Bronze Age and at least one of the layers may indicate the re-use of the tomb later.
The burial chamber consists of eight stones of various shapes, supporting a huge top boulder (capstone) measuring 5.5 meters long by 4.5 meters wide, 1.1 meters thick and an estimated weight of about 25 tons. It is erected above a natural crack in the rock, thanks to which the chamber was about 2 meters high. Originally, the whole was covered with a mound of earth or stones.
The burial chamber is under the care of Cadw, it is available to visitors free of charge throughout the year, except for holidays. It is located very close to the road and can be reached on foot from the car park at the edge of the road, about 1.2 km north of Llanallgo.
Website coflein.gov.uk, Lligwy burial chamber near Moelfre.
Website stone-circles.org.uk, Lligwy Neolithic Chambered Barrow.