Holyhead Mountain Hut Circles

The Holyhead Mountain Hut Circles (Welsh: Tŷ Mawr, lit.'big house'; or Cytiau'r Gwyddelod, 'Irishmen's huts') are the remains of a group of Celtic Iron Age huts near Trearddur on Holy Island, Anglesey, Wales. The site is under the care of Cadw and can be visited all year round. The construction of these huts is very similar to those at Din Lligwy, having thick stone walls.