On the southern shore of the Menai Strait, to the west of Segontium (Caernarfon) and opposite Abermenai Point where the Menai Strait issues to the sea, is the sheltered inlet of Foryd Bay fringed by good quality lowland farmland. Aerial reconnaissance in 2006 identified a series of rectangular structures at Glan y Mor (NPRN 409821), on the eastern shore of the Foryd Bay inlet and these showed again with greater clarity on 10th July 2018. The cropmarks were further extended in July 2018 by the identification of an early field system (NPRN 423651) running north-west / south-east between Plas Farm and the shores of the Menai Strait to. The fields are rectangular, with at least one ditched hollow way visible.

The rectangular structures at Glan y Mor are most directly comparable to the cluster of buildings and ditched enclosures identified close to the shore in the south-eastern part of the Taicochion settlement. Two groups of rectangular structures at Glan y Mor are visible, picked out on a slightly raised and more freely-draining ridge of ground bordering the coastal inlet. To the south is a ditched rectangular enclosure (at SH 4541 6022), with a subdivision at the southern end, measuring 25m x 13m and sited parallel with the coast. Further, poorly-defined enclosures are visible just to the east, obscured by `unresponsive? crops marking deeper soils. To the north (at SH 4540 6034) is the second group of rectangular structures comprising one sited end-on to the coast measuring 26m x 10m and a third to the north with a similar subdivision at its southern end measuring 26m x 14m. Again there are cropmarks of additional structures here which cannot be properly made out. Both groups of structures are linked by a linear ditch or boundary.

It is tempting to see these uniform rectangular structures as buildings of a coastal settlement. While the most prominent archaeological sites here are medieval (St Baglan's Church and Early Christian Monument 500m to the north) and Cored Gwyrfai fish trap in Foryd Bay, there are also cropmarks of a polygonal enclosure complex underlying the church, apparently of later prehistoric date (NPRN 403370). While these apparent `buildings? are larger than the typical 16m x 8m buildings at Tai Cochion, they share similarities in terms of morphology and siting.

Discovered during RCAHMW aerial reconnaissance on 18th July 2006, image refs: AP_2006_2834-6.

T. Driver, RCAHMW, 16th Nov 2009 & updated 2019