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Mynydd Perfedd
812m (2665ft)

The Glyders (or Glyderau), Snowdonia, Gwynedd, Wales

Mynydd Perfedd means 'Middle Mountain' in Welsh and is pronounced 'minith perveth'.


Record Mynydd Perfedd as Bagged, Climbed & Conquered


Welsh Nuttall Icon

Welsh Nuttall
38th highest in Wales,
81st in England & Wales

You can find Mynydd Perfedd & all the walks that climb it on these unique free-to-access Interactive Walk Planning Maps: (click/TAP to select)

Snowdonia National Park


1:25,000 scale OS Explorer Map (the ones with orange/yellow covers):

OL17 Snowdon/Yr Wyddfa and Conwy Valley/Dyffryn Conwy


1:50,000 scale OS Landranger Map (the ones with pink/magenta covers):

115 Snowdon & Caernarfon


See Mynydd Perfedd and the surrounding tops on our free-to-access 'Google Style' Peak Bagging Maps:

See Mynydd Perfedd and the surrounding tops on our downloadable PDF Peak Bagging Map:


You can walk to the top of Mynydd Perfedd by using this easy‑to‑follow route map:
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Walk gw194 Y Garn (Glyderau), Foel-goch, Mynydd Perfedd, Carnedd y Filiast (Glyderau) and Elidir Fawr from Nant Peris

High level walk with superb mountain views

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Vital Statistics:

Length: 10.75ml (17km)
Ascent:4,699ft (1,432m)
Time:8½ hrs
Grade:Walk Grade 8 Icon (Hard)

Other walkers who hiked, climbed, bagged and summited Mynydd Perfedd Fellow go4awalkers who have already walked, climbed, summited & bagged Mynydd Perfedd

Stephanie Doyle walked up Mynydd Perfedd on March 19th, 2022 [with] Friend [weather] Windy

Melfyn Parry climbed Mynydd Perfedd on November 1st, 2018 [from/via/route] Marchlyn Mawr loop. Start point 596631, tarmac path up to Marchlyn Mawr dam, scrambling up east side of Elidir Fawr ridge, ascending to summit. Return to notch then descent to Bwlch y Marchlyn then climb to summit of Mynydd Perfedd & then over to Carnedd y Filiast stopping on route to see "Atlantic Slabs". Descent from summit to west side of Marchlyn dam before returning to start point. [with] DS & ChW [weather] Mainly sunny day

Sion Britton bagged Mynydd Perfedd on August 25th, 2021 [from/via/route] O Deiniolen. [with] Gyda Sion Rich a Meical. [weather] Noswaith braf.

Adrian Haywood hiked Mynydd Perfedd on April 18th, 2021 [from/via/route] From Nant Peris over Elidir Fawr [with] Rob [weather] Lovely!

Andy Buxton summited Mynydd Perfedd during August, 1965 [with] Dad

Christina Lander conquered Mynydd Perfedd on September 27th, 2018 [from/via/route] Deiniolen - Carnedd y Filiast - Mynydd Perfedd - Elidyr Fawr - Elidyr Fach - Deiniolen [with] Dick & Meg [weather] A perfect sunny day - Beautiful views across Anglesey, & towards Tryfan & Snowdon

Kevin Williams scaled Mynydd Perfedd on March 20th, 2018 [from/via/route] Marchlyn Mawr reservoir road [with] Solo [weather] Sunny, some snow

Marilyn Wadkin walked up Mynydd Perfedd on May 15th, 2016 [from/via/route] Circular walk from Deiniolen past Marchlyn Mawr reservoir. [with] Rob. [weather] Very cold wind with warm sunny intervals. - Had first summited carnedd y filiast then onto elidir fawr & elidir fach.

Gerald Murphy climbed Mynydd Perfedd on August 4th, 2014 [from/via/route] See notes for Y Garn walk, same day. [with] alone [weather] See notes for Y Garn walk, same day. - No other comments

Robert Taylor-Marriott bagged Mynydd Perfedd on September 17th, 2012 [from/via/route] Route 40: Mynydd Perfedd & Carnedd y filiast (MPCF) Completed 17.09.12 [with] Vince Wetton & Robert Taylor-Marriott. [weather] Sunny, cloudy, misty.

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More Photographs & Pictures of views from, on or of Mynydd Perfedd

Foel-goch, Elidir Fawr, Mynydd Perfedd and Carnedd y Filiast from Drosgl

Foel-goch, Elidir Fawr, Mynydd Perfedd and Carnedd y Filiast from Drosgl

Photo: Alun Lawrence (11)

*Carnedd Gwenllian (Carnedd Uchaf), Foel Grach, Carnedd Llewelyn, Carnedd Dafydd, Yr Elen, Foel-goch, Elidir Fawr, Mynydd Perfedd and Carnedd y Filiast from Drosgl

*Carnedd Gwenllian (Carnedd Uchaf), Foel Grach, Carnedd Llewelyn, Carnedd Dafydd, Yr Elen, Foel-goch, Elidir Fawr, Mynydd Perfedd and Carnedd y Filiast from Drosgl

Photo: Alun Lawrence (13)

Foel-goch (Glyderau) and Mynydd Perfedd from Llyn Ogwen

Foel-goch (Glyderau) and Mynydd Perfedd from Llyn Ogwen

Photo: Chris Player (5)

*Y Garn (Glyderau) (far left), Elidir Fawr, Foel-goch, Mynydd Perfedd and Carnedd y Filiast (Glyderau) from Tryfan

*Y Garn (Glyderau) (far left), Elidir Fawr, Foel-goch, Mynydd Perfedd and Carnedd y Filiast (Glyderau) from Tryfan

Photo: David Hands (4)

Mynydd Perfedd and Foel-goch from Y Garn (Glyderau)

Mynydd Perfedd and Foel-goch from Y Garn (Glyderau)

Photo: Peter Scholes (3)

Elidir Fawr from Mynydd Perfedd

Elidir Fawr from Mynydd Perfedd

Photo: Mike Knipe (117)

Mynydd Perfedd summit shelter

Mynydd Perfedd summit shelter

Photo: Peter Scholes (13)

Y Garn (Glyderau), Foel-goch (Glyderau), Mynydd Perfedd and the shoulder of Pen yr Ole Wen from Llyn Ogwen

Y Garn (Glyderau), Foel-goch (Glyderau), Mynydd Perfedd and the shoulder of Pen yr Ole Wen from Llyn Ogwen

Photo: Chris Player (6)


Send us your photographs and pictures on, of, or from Mynydd Perfedd

If you would like to add your walk photographs and pictures featuring views from, on or of Mynydd Perfedd to this page, please send them as email attachments (configured for any computer) along with your name to:



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