Anglesey trail/Llwybr Ynys Môn
Bryn Celi Dhu
This megalithic mound tomb was once surrounded by a stone circle of which one remains standing at the entrance of the tomb. The tomb is off the A4080 about a mile south of Llanfair in Anglesey.
Castell Bryn Gwyn
This is said to be a Neolithic fortified enclosure built on low land and used in subsequent periods. It has wide banks and ditches for protection. It is on a footpath, west of Brynsciencyn on a footpath off the A4080 in Anglesey.
Caer Leb
This is a prehistoric enclosure and the remains of banks and ditches can be seen. The site is just to the west of Brynsciencyn which is on the A4080 in Anglesey.
Bryn Gwyn Standing Stones
There are just two large, tall stones that remain of a once larger ring. The stones are close to Castell Bryn Gwyn, Caer Leb and Bodowyr Burial Chamber and are off the A4080 west of Brynsciencyn near Pont Mynach in Anglesey.
Bodowyr Burial Chamber/Siambr Gladdu Bodowyr
This is a Neolithic burial chamber made up of three large upright stones with a capstone on top. At the east end a short passage leads to the interior. The site is located off the B4419 just to the east of Llangaffo toward Brynsciencyn in Anglesey.
Din Dryfol Chambered Tomb/Siambr Gladdu Din Dryfol
This Neolithic chambered tomb is thought to have started as a single chambered construction but later adapted to make four chambers. Archaeology has unearthed the remains of cremations and pottery. The site is on the side of Din Dryfol hill on a footpath branching from a lane of the B4422 north of Bethel which is northwest of Llangaffo in Anglesey.
Ty Newydd Burial Chamber/Siambr Gladdu Ty Newydd
This Neolithic chambered tomb is made up of a large capstone supported by four side stones. The capstone is now also kept aloft with the help of some modern supports. The site is just to the north of Llanfaelog village in Anglesey off minor roads.
Barclodiad y Gawres
This is a large chambered Neolithic tomb with a central area, hearth and side chambers. In one of which were found the remains of two cremated burials. The tomb has a number of impressive carved stones, including ones with spiral patterns. The site is off the A4080 about a mile southeast of Rhosneigr in Anglesey.
Lyn Cerrig Bach
This is an Iron Age site and it has been speculated that Lyn Cerrig Bach was an important ritualistic site linked to the Druids. There was a former lake on the site and a large number of bronze and iron objects were recovered from the peat, suggesting they were placed in the lake as offerings. Many of these objects can be seen in national Museum of Wales and have been dated between the second century BC and 60AD. The site is located at the western end of the village of Caergeiliog on the A5 towards RAF Valley airfield in Anglesey where a boulder marks the site.
Ty Mawr
Situated at the base of Holyhead Mountain close to South Stack is the remains of an Iron Age settlement comprising of circular huts and rectangular buildings. There is also another group of round stone huts close by and there is some evidence that the site was occupied in the Middle Stone Age, Neolithic, Bronze and iron Ages. The site is located west of Holyhead in Anglesey, close to South Stack.
Penrhos Feilw Standing Stones
Thought to date to around 200BC this pair of standing stones rise to a height of about eleven feet, are approximately ten feet apart and are located at the base of Holyhead Mountain. It is not clear what their significance was but possibly they are aligned to other significant landscape features in the area. They can be accessed from a minor road between South Stack and Trearddur west of Holyhead in Anglesey.
Caer y Twr
This is the site of an Iron Age hillfort is on the summit of Holyhead Mountain. It has a commanding position over the Irish Sea and the remains of a large stone rampart on the east and north sides. There is also the remains of the base of a subsequent Roman stone watchtower. The site is west of Holyhead in Anglesey toward South Stack where a path to the summit of Holyhead Mountain can be taken.
Ty Mawr Standing Stone
This standing stone is about nine feet high and twists as it reaches the top. Probably Bronze Age in origin and is to the west of Trefignath Burial Chamber. It is close to the A5 and B4545 south of Holyhead towards Trearddur.
Trefignath Burial Chamber/Siambr Gladdu Trefignath
This is a Neolithic tomb dating back to 3750 BC and is made up of a pair of large upright standing stones which are on both sides of the central chamber which has two capstones supported by a number of smaller stones. There is another upright stone is at the back of the chamber. The site is located off the A5 between Tearddur and Holyhead.
Presaddfed Burial Chamber/Siambr Gladdu Presaddfed
Thought to date between 4000 and 2000 BC the remains of this site one of the two chambers has collapsed but the other has a capstone on uprights with some additional support. It is located on a road north of Bodedern village at Brynadfed by the lake of Llyn Llywenan in Anglesey.
Tregwehelydd Standing Stone
This standing stone possibly dates back to 2000 BC and is about eight feet high. The stone has been broken and then re-joined and enabled to stand again. This restored stone is northwest of Llyn Llywenan, by a footpath off small road close to Llanfigael in Anglesey.
Soar/Llanfaethlu Standing Stone
This stone is thought to be Bronze Age and stands on it's own at a height of about ten feet. It is about a foot thick. The stone just to the southeast of Llanfaethlu in a field close to the A5025 in Anglesey.
Lligwy Burial Chamber/Siambr Gladdu Lligwy
This Neolithic burial chamber is made up of eight upright stones with a large heavy capstone on top. This site has revealed the bones of over thirty people and animal remains. Pottery on the site points to it's use into the Bronze Age period. The chamber is north of Llanallgo village near Moelfre in Anglesey off a minor road.
Din Lligwy
This Iron Age site comprises of the remains of a large domestic round building with smaller round buildings used for habitation and larger rectangular workshops. These are enclosed within a stone enclosure. The site is located southwest of Moelfre where a roundabout on the A5025 will have signpost for Din lligwy and there is a footpath past Capel Lligwy.
Castell Aberlleiniog
This is was a late eleventh century motte and bailey castle but the structure visible today is a Civil War construction of a stone building and surrounding curtain wall. The site is on private land about two miles north of Beaumaris on Anglesey.
Beaumaris Castle/Castell Biwmares
Construction of this concentric castle began in the late thirteenth century on a flat plain on the north of the Menai Strait. The inner ward has four corner towers and two drum towers in the east and west ranges with the north and south ranges gatehouses having accommodation. The chapel is of notable construction with significant accommodation nearby. The Welsh under Owain Glynd?r took the castle in 1404 but it was recaptured by the English two years later and there followed a period of gradual decay. The castle did see action during the Civil War when it was taken by Parliamentary forces. The castle is sited in a picturesque location at Beaumaris on Anglesey northwest of the Menai Bridge on the A545.