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Mountain or Hill:Yr Eifl Mountain

Mountain or Hill

LL54 5NB



This iconic mountain comprises 3 peaks, Tre'r Ceiri (485m), Garn Ganol (561m) and Garn For (444m). Along with a strong cultural resonance, Yr Eifl excites special interest due to its plant life and birds.

On the third summit of Yr Eifl, stands the ancient hill fort of Tre'r Ceiri, meaning 'Town of the Giants'. This spectacular remnant of an Iron Age hill fort is said to be one of the most impressive monuments in Wales. Stone ramparts surround its entire circuit and in some places exceed 3 metres in height. The interior is packed with walled stone buildings and the remains of 150 huts, with some walls over a metre high. Several are roundhouses and others are rectangular and oval. The huts are grouped together in four or five bands across the fort, varying in size and shape.

Galvanising views extend from Cumbria to Wicklow and across Cardigan Bay. Habitats encompass the rocky shoreline, quarries, natural outcrops, screes, extensive heathland and exposed summit areas. Heather, bell heather and western gorse dominate the drier heath, while cross-leaved heath, deergrass, purple moor-grass and bog moss are abundant in the wetter areas. Butterwort and Common Yellow-sedge occur in wet flushes where soils are less acidic.

The seaward face of the northern peak is a steep gullied slope down to sea level. The population of Chough, which breed on the natural and artificial rock faces and feed on the heaths, rouse particular interest. Other birds include buzzard, meadow pipit, raven and wheatear (summer visitor). A herd of feral goats are also residents of the area.


Pwllheli Tourist Information Centre


LL54 5NB


Plan route to Yr Eifl Mountain using Google mapsPlan route using Google maps

Map reference: SH 364447  Lat: 52.97509 Long: -4.43719

Routes lead onto the hill from the nearby villages of Llithfaen to the south, Llanaelhaearn to the east and Trefor to the north.