Qualla: Glyder Fawr

Glyder Fawr: Introduction

Mon, 25 May 2026 00:00:00 GMT

Photo credit Eric Jones, CC BY-SA 2.0. In late 2010 a surveying team with modern GPS gear climbed Glyder Fawr, took accurate measurements of its highest point, and gave the Snowdonia National Park Authority an awkward piece of news. The mountain everyone had thought was 999 metres tall was actually 1,000.8. A spokesman for the park authority took the news cheerfully. Now the mountain exceeded a thousand metres, he said, walkers would be more interested in climbing it. There is something distinctly Welsh in the notion that a mile-high mountain - well, three-thousand-foot - has been an under-the-radar peak because of a survey error a metre and a bit short of fame.

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Image: Eric Jones | CC BY-SA 2.0

Glyder Fawr: The Glyderau Spine

Mon, 25 May 2026 00:00:00 GMT

Photo credit Alan Butterworth, CC BY-SA 2.0. Glyder Fawr - "big heap of stones" - is the highest peak in the Glyderau range and the fifth-highest in Wales. The range runs west to east from Elidir Fawr (924 m) through Y Garn (947 m), then climbs to Glyder Fawr (1,001 m) and Glyder Fach (994 m) before dropping to Tryfan (918 ...

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Image: Alan Butterworth | CC BY-SA 2.0

Glyder Fawr: Five Hundred Million Years of Erosion

Mon, 25 May 2026 00:00:00 GMT

Photo credit Philip Halling, CC BY-SA 2.0. About five hundred million years ago, two land masses on opposite sides of the Iapetus Ocean drifted into each other and threw up the Snowdonia massif. The rocks beneath your feet on Glyder Fawr today are the volcanic and sedimentary remnants of that collision - tuffs and lavas, ...

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Image: Philip Halling | CC BY-SA 2.0

Glyder Fawr: The Routes Up

Mon, 25 May 2026 00:00:00 GMT

Photo credit Nigel Davies, CC BY-SA 2.0. The most popular ascent starts at Ogwen Cottage on the A5, follows the shore of Llyn Idwal to the base of the Idwal Slabs - the Rhiwiau Caws climbing crag, one of Wales' great traditional rock-climbing areas - then climbs the steep cleft of Twll Du ("the Black Hole," usually call...

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Image: Nigel Davies | CC BY-SA 2.0

Glyder Fawr: Land in Lieu of Death Duties

Mon, 25 May 2026 00:00:00 GMT

Photo credit Source: Llywelyn2000Derivative: User:MathKnight, CC BY-SA 4.0. In 1951 the Penrhyn family - whose fortune had come from slate quarrying down the valley at Bethesda - faced enormous death duties on their North Wales estate. Rather than break it up, they handed the Glyderau and the Carneddau to the National Trust in lieu of tax. The transfer b...

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Image: Source: Llywelyn2000Derivative: User:MathKnight | CC BY-SA 4.0

Glyder Fawr: The View from a Thousand Metres

Mon, 25 May 2026 00:00:00 GMT

Photo credit Eric Jones, CC BY-SA 2.0. Standing on Glyder Fawr at 1,001 metres, on a day when the cloud lifts off the ridge, you can see Snowdon two kilometres south and slightly higher across the Llanberis Pass; the broad whaleback of the Carneddau north of the Ogwen; Anglesey and the Menai Strait to the north-west; ...

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Image: Eric Jones | CC BY-SA 2.0