Glyder Fawr

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Glyder Fawr
Glyder Fawr rocks.JPG
Rocky outcrop on Glyder Fawr
Elevation 1,001 m (3,284 ft)
Prominence 642 m (2,106 ft)
Parent peak Snowdon
Listing Marilyn, Hewitt, Welsh 3000s, Nuttall
Translation big lump (Welsh)
Pronunciation Welsh: [ˈɡlɪdɛr ˈvaur]
Location Gwynedd / Conwy, UK
Range Snowdonia
OS grid SH642579
Coordinates 53°06′03″N 4°01′47″W / 53.10097°N 4.02978°W / 53.10097; -4.02978
Topo map OS Landranger 115 / Explorer OL17
Listed summits of Glyder Fawr
Name Grid ref Height Status
Glyder Fach SH656583 994 metres (3,261 ft) Welsh 3000s, Hewitt, Nuttall
Y Foel Goch SH677582 805 metres (2,641 ft) Hewitt, Nuttall
Gallt yr Ogof SH685585 763 metres (2,503 ft) Hewitt, Nuttall

Glyder Fawr is a mountain in Snowdonia, Wales, the highest in the Glyderau at just over 1,000m. It is the fifth highest mountain in Wales.

The summit lies on the ridge between Glyder Fach and Y Garn, and has views to the north, across the Ogwen Valley, of Pen yr Ole Wen and the Carneddau, and views south to the Snowdon Horseshoe. The summit plateau is very rocky, making progress slow.

Routes to the summit start at Ogwen Cottage on the shores of Llyn Idwal to the north, from Pen-y-Pass to the south, and along the Glyder ridge to the east. One of the most popular routes from Ogwen Cottage follows the shore of Llyn Idwal to the base of the famous Idwal Slabs (a popular rock climbing crag), it then makes its way out of the cwm via the steep Devil's Kitchen path, arriving at a small lake called Llyn Y Cwn. From here a steep scree path ascends the western shoulder to the summit of Glyder Fawr.

Until late-2010, most maps showed a height of 999m for Glyder Fawr, however it was resurveyed with accurate GPS equipment and found to be 1,000.8m.[1]

The summit marks the boundary of Gwynedd and Conwy County Borough.

According to Sir Ifor Williams, the word "Glyder" derives from the Welsh word "Gludair", meaning a heap of stones.[2]


  1. ^ New height makes Snowdonia peak 'super mountain'
  2. ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. ISBN 1-85284-304-7.

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