An unusual ruined stone-walled or stone founded building and a structured stone pile at Bwlch-y-ffordd set some 35m north-west of a later prehistoric type settlement complex (NPRN 303041).
The building is laid out across slightly sloping ground at the foot of an outcrop or craggy hillock. It is a round cornered rectangular structure aligned north-east to south-west, roughly 12m by 4.7m internally, with an entrance gap in the short eastern wall.
The stone pile lies 10m to the north-east. It is about 6.5m north-west to south-east by 3.8m at the south-east end, tapering to 2.8m at the north-west end, and standing up to 0.8m high. The south-east end includes at least one upright orthostatic stone.
It has been speculated that the building is a Viking boat-shaped house and it may be associated with the later prehistoric type settlement. Alternatively it could be a medieval or later agricultural building, a byre or sheep barn.
The stone pile could be a sepulchral monument and it shares roughly the same dimensions as the Roman period 'graves' at Tre'r Ceiri (NPRN 95292).
Both features are depicted in outline on the 1st edition OS County series (Merioneth. XXVII.6 1889).

Source: Crew & Musson 'Snowdonia from the Air' (1997), 22

J.Wiles 17.09.07