English: Celtic Iron Age settlement in Anglesey, Wales. Many roundhouses around the enclosure to the north, south and west failed to produce any Roman materials, in other parts Roman material were recovered, mostly of the late third-fourth century AD, which shows that this settlement had inhabitants over many centuries. There are two roundhouses, 6.5-7.3m internal diameter and originally freestanding, and up to seven rectangular buildings, the largest 14.7m by 5.7m.