Carn Fadryn

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Carn Fadryn
Garn Fadryn.jpg
Garn Fadryn from the south
Highest point
Elevation371 m (1,217 ft)
Prominence343 m (1,125 ft)
Parent peakYr Eifl
LocationLlŷn Peninsula, Wales
OS gridSH278351

Carn Fadryn, sometimes Carn Fadrun or Garn Fadryn, is a five-hectare Iron Age hillfort and is the name of the mountain on which the fort is situated.[1] It lies in the centre of the Llŷn Peninsula, Gwynedd, and overlooks the village of Garnfadryn, Wales.

There seems to be two phases of ancient hillfort building on Carn Fadryn, followed by a medieval fortification of the summit. The first period of fortification at Garn Fadryn dates from about 300 BC, when the summit and an area of some 12 acres (49,000 m2) were enclosed.

These were re-fortified during a second period and a wider area towards the north of a total of about 26 acres (110,000 m2) was enclosed. This second period of reinforcement dates from about 100 BC.

The third fort which strengthens the natural crag near the summit is thought to be "the castle of the sons of Owain", mentioned in 1188 as being newly built. (Giraldi Cambrensis Opera (Rolls series, 1868), VI, p123 'dua castra lapidea de nova sita fuerunt; unum...Deutrait; capite Lhein, quod erat filium Oenei, cui nomen Karnmadrun.')

On a clear day, the view from Garn Fadryn takes in Anglesey, Snowdonia, most of Cardigan Bay and even the Wicklow Mountains in Ireland.

See also[edit]


  1. ^ "Carn Fadrun;Carn Fadryn". Royal Commission on the Ancient and Historical Monuments of Wales. 5 June 2008. Retrieved 21 January 2016.

External links[edit]

Coordinates: 52°53′09″N 4°33′39″W / 52.88571°N 4.56077°W / 52.88571; -4.56077