Mynydd Mawr (Llyn Cwellyn)
698m (2291ft)
The Moel Hebog Area, Snowdonia, Gwynedd, Wales
Mynydd Mawr (Llyn Cwellyn) means 'Great Mountain' in Welsh and is pronounced 'min-nith m-ow'.
The summit of Mynydd Mawr (Llyn Cwellyn) is marked by a large cairn.
You can find Mynydd Mawr (Llyn Cwellyn) & all the walks that climb it on these unique free-to-access Interactive Walk Planning Maps: (click/TAP to select)
1:25,000 scale OS Explorer Map (the ones with orange/yellow covers):
1:50,000 scale OS Landranger Map (the ones with pink/magenta covers):
See Mynydd Mawr (Llyn Cwellyn) and the surrounding tops on our free-to-access 'Google Style' Peak Bagging Maps:
See Mynydd Mawr (Llyn Cwellyn) and the surrounding tops on our downloadable PDF Peak Bagging Map:
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Vital Statistics:
| Length: | 6.25ml (10km) |
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| Ascent: | 2,340ft (713m) |
| Time: | 4.75hrs |
| Grade: |  (Moderate) |
Route Summary:
Rhyd-Ddu - Rhyd-Ddu Forest - Foel Rudd (Mynydd Mawr) - Craig y Bera - Mynydd Mawr (Llyn Cwellyn) - CraigCwmbychan - Cwm Planwydd - Llyn Cwellyn - Beddgelert Forest - Planwydd - Rhyd-Ddu
Fellow go4awalkers who have already walked, climbed, summited & bagged Mynydd Mawr (Llyn Cwellyn)
Donovan Suddell walked up Mynydd Mawr (Llyn Cwellyn) on April 24th, 2024 [from/via/route] Rhyd Ddu [with] Wife [weather] Bright & sunny. Cold at the summit
Daniel Moran climbed Mynydd Mawr (Llyn Cwellyn) on January 25th, 2023 [from/via/route] shortest route [with] frankie [weather] Cloudy, windy - up & down in 2hours
Melfyn Parry bagged Mynydd Mawr (Llyn Cwellyn) on April 17th, 2021 [from/via/route] From base of Moel Smytho follow well defined path to summit [with] GP [weather] Sunny & generally warm
Sion Britton hiked Mynydd Mawr (Llyn Cwellyn) on March 23rd, 2016 [from/via/route] Cerdded o Y Fron [with] Rhiannon [weather] Sunny
Christina Lander summited Mynydd Mawr (Llyn Cwellyn) on January 20th, 2020 [from/via/route] Rhyd Ddu - Beddgelert Forest - Foel Rudd - Mynydd Mawr - Foel Rudd - Beddgelert Forest - Rhyd Ddu [with] Dick & Meg [weather] Beautiful day, mostly in the sunshine, with cloud on the higher mountains - An easy day, after climbing Snowdon on the Rhyd Ddu track the previous day
Robert Taylor-Marriott conquered Mynydd Mawr (Llyn Cwellyn) on September 16th, 2015 [from/via/route] 67 Route Mynydd Mawr (MM) 16.09.15 [with] Terry Jones & Robert Taylor-Marriott [weather] Sunny & Clear visibility.
Gerald Murphy scaled Mynydd Mawr (Llyn Cwellyn) on April 9th, 2015 [from/via/route] Rhyd Ddu car park [with] alone [weather] sunny, dry, no breeze to speak of, definite haze - Followed gw151
Vince Wetton walked up Mynydd Mawr (Llyn Cwellyn) on July 4th, 2013 [from/via/route] Fel Wen, Cadair Berwyn [with] RTM [weather] Wonderful Hot Sunny Day
Pamela French, Math Llwyd, Louis Smith, Linda Mckeogh, Paul Booth, Trevor Williams, Mark Davidson and Dave Milner have all walked, climbed & bagged Mynydd Mawr (Llyn Cwellyn).To add (or remove) your name and experiences on this page - Log On and edit your Personal Mountain Bagging Record
More Photographs & Pictures of views from, on or of Mynydd Mawr (Llyn Cwellyn)
Mynydd Tal-y-mignedd (centre left) and Craig Cwm Silyn (centre right) from Craig y Bera on Mynydd Mawr (Llyn Cwellyn)
Approach to Foel Rudd (Mynydd Mawr) and Mynydd Mawr (Llyn Cwellyn) from the Beddgelert Forest path near Bwlch y Moch
Mynydd Mawr (Llyn Cwellyn) from Trum y Ddysgl - with Moel Eilio (Llanberis) (beyond right)
The Nantlle Ridge - Y Garn (Moel Hebog), Mynydd Drws-y-coed and Trum y Ddysgl from Craig y Bera on Mynydd Mawr (Llyn Cwellyn)
Mynydd Mawr (Llyn Cwellyn), Craig y Bera and Moel Eilio (Llanberis) from Y Garn (Moel Hebog)
Mynydd Mawr (Llyn Cwellyn), Y Garn (Moel Hebog), The Nantlle Ridge and Mynydd Drws-y-coed from Trum y Ddysgl - with The Snowdon Massif (Moel Eilio (Llanberis), Foel Gron, Moel Cynghorion, Garnedd Ugain (Crib y Ddysgl), Snowdon (Yr Wyddfa), Y Lliwedd and Yr Aran) forming the backdrop
Llyn Cwellyn and Mynydd Mawr (Llyn Cwellyn) (centre left) and Moel Eilio (Llanberis) (far right) from Snowdon (Yr Wyddfa)
Mynydd Mawr (Llyn Cwellyn) (left), Llyn Cwellyn, Moel Eilio (Llanberis) (right) and Foel Gron (far right) from the Rhyd Ddu path
Mynydd Drws y Coed (far left), Y Garn (Moel Hebog Area) (left) and Mynydd Mawr (Llyn Cwellyn) (right)
Moel Eilio, Foel Gron and Foel Goch (Snowdon) in the distance with Mynydd Mawr (Llyn Cwellyn) (left), Cwm Planwydd and Foel Rudd (Mynydd Mawr) (right) from Craig y Bera
Craig y Bera and Mynydd Mawr (Llyn Cwellyn) tower above Drws-y-coed from Y Garn (Moel Hebog)
Send us your photographs and pictures on, of, or from Mynydd Mawr (Llyn Cwellyn)
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