NGRef: SH7457
OSMap: LR115, OL17
Type: Fort
N (10) to Canovivm (Caerhun, Gwynedd)
S (12) to Tomen Y Mvr

Bryn-y-Gefeiliau - 'The Hill of the Metalsmiths'

Caer Llugwy - click to enlarge
Caer LLugwy/Bryn-y-Gefeiliau pictured from the minor road to the south.
The sedges running across the middle foreground mark the line of a small stream separating the fort from its western annexe, which lies in the left foreground. The curious sheep studying the observer just to the left of centre is resting upon the fort's south-western corner-angle. The eastern two-thirds of the fort lies beyond the drystone wall running across the centre of the frame. The actual "Hill of the Metalsmiths" lies immediately behind the observer.
(Picture taken in May 2005)

Bryn-y-Gefeiliau is also known by the name "Caer Llugwy" due to its location beside the Afon Llugwy near Betws-y-Coed. This late-Flavian fort of almost 4 acres (c.1.6ha) was built c.90AD, possibly upon Agricolan foundations. Trajanic pottery and "a little Samian ware" of the Antonine period probably point to the fort becoming disused before the third century; perhaps being temporarily abandoned during the reign of Hadrian c.120-150 as suggested by Dr. Simpson, in view of the scarcity of pottery of the period. Unstratified pottery recovered within the defences includes three sherds of Trajanic samian ware, a single sherd dated c.150-200 and another sherd of Eastern Gaulish decorated ware. The rampart was constructed of earth resting upon a cobble foundation with a core of piled stones.

There is a Roman marching camp about five miles to the west at Pen-y-Gwrhyd (SH6555), at the foot of Mount Snowdon.

Click here for a map of Caer Llugwy from

See: Britons and the Roman Army by Dr. Grace Simpson (Gregg, London, 1964).
Page Citation: Kevan White (2018) "Roman Britain: BRYN Y GEFEILIAU"