Mountain (Hewitt), Nuttall, Marilyn & OS Trig Point Icon

Moelwyn Mawr
770m (2527ft)

The Moelwyns, Snowdonia, Gwynedd, Wales

Moelwyn Mawr means 'Big White Bare Hill' in Welsh.

The summit of Moelwyn Mawr is marked by an Ordnance Survey Trig Point.


Record Moelwyn Mawr as Bagged, Climbed & Conquered


Welsh Mountain Icon

Welsh Mountain
43rd highest in Wales,
103rd in England & Wales

Welsh Nuttall Icon

Welsh Nuttall
54th highest in Wales,
127th in England & Wales

Welsh Marilyn Icon

Welsh Marilyn
19th highest in Wales,
448th highest in Great Britain

Welsh Trig Point Icon


Welsh Trig Point (Pillar)

You can find Moelwyn Mawr & 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):

OL18 Harlech, Porthmadog & Bala/Y Bala


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

124 Dolgellau & Porthmadog


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

See Moelwyn Mawr and the surrounding tops on our downloadable PDF Peak Bagging Map:


You can walk to the top of Moelwyn Mawr by using any of these 4 easy‑to‑follow route maps:
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Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau

A steep ascent to fine views of two valleys

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Vital Statistics:

Length: 6.20ml (10.5km)
Ascent:2,691ft (820m)
Time:5 hrs
Grade:Walk Grade 6 Icon (Moderate)
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Walk gw288 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Croesor

Superb views and an interesting ruined quarry.

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Vital Statistics:

Length: 8.25ml (13km)
Ascent:3,037ft (926m)
Time:6 hrs
Grade:Walk Grade 6 Icon (Moderate)
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Walk gw224 Cnicht, Hafod-yr-Hydd and Moelwyn Mawr from Croesor

Superb views of sea and valley.

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Vital Statistics:

Length: 9ml (14.5km)
Ascent:3,355ft (1,023m)
Time:6.75hrs
Grade:Walk Grade 7 Icon (Hard)
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Walk gw173 Cnicht, Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Croesor

Superb views of sea and valley

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Vital Statistics:

Length: 10ml (16km)
Ascent:3,923ft (1,196m)
Time:7½ hrs
Grade:Walk Grade 7 Icon (Hard)

Other walkers who hiked, climbed, bagged and summited Moelwyn Mawr Fellow go4awalkers who have already walked, climbed, summited & bagged Moelwyn Mawr

Daniel Moran walked up Moelwyn Mawr on February 18th, 2024 [from/via/route] Slate mine carpark [with] Chel and frankie [weather] Cold wind no rain - Went in a mine, old abandoned village, turn back due to forgetting my bag, Frankie had no coat

Stephanie Doyle climbed Moelwyn Mawr on June 18th, 2022 [with] Pals [weather] Nice

Melfyn Parry bagged Moelwyn Mawr on April 11th, 2019 [from/via/route] Start & finish at Croesor car park at SH631446. Steep tarmac road to start of the walking path. Ascent to summit of Cnicht was via well defined path. Stunning views in all directions. Descent from summit toward Llyn Adar before turning right to pass by Llynnau Dwyffos. Path a little boggy along here up to brow of hill. Descent to Rhosydd quarry & then up the old incline to stop for lunch. Ascent to ridge line & then followed fence to summit of Moelwyn Mawr. Descent back to car park via grassy slope, not too steep & then tarmac lane. [with] DS [weather] Mainly sunny & warm, occasional cold breeze.

Donovan Suddell hiked Moelwyn Mawr on April 10th, 2021 [from/via/route] Croesor using gw173 [with] My wife [weather] Sunny & clear, odd sprinkle of snow - gw173 is a mighty fine walk.

Andy Buxton summited Moelwyn Mawr during August, 1965 [from/via/route] From Croesor-circular with Moelwyn Mawr & Bach [with] Dad

Bleddyn Rhys conquered Moelwyn Mawr on October 31st, 2014 [from/via/route] Fynnu'r llwybr charael o Croesor, ac i lawr y 'south ridge' yn ol ir pentre. [with] gyda Caradog a Daniel! [weather] Reit neis, haul ar adegau, ambell i gwmwl. Aros yn sych - Yr hogia wedi gwirioni eu bod wedi cyrraedd top Moelwyn mawr!

Christina Lander scaled Moelwyn Mawr on April 18th, 2018 [from/via/route] Croesor - Cnicht - Bwlch y Rhosydd - Llyn Croesor - Moelwyn Mawr - Moelwyn Bach - Croesor [with] Dick [weather] Started off overcast, but turned into a beautiful sunny day. Windy on top of Moelwyn Mawr & Moelwyn Bach

Mark Davidson walked up Moelwyn Mawr on August 20th, 2002 [with] Alone [weather] Sunny & warm with good views

Robert Taylor-Marriott climbed Moelwyn Mawr on May 8th, 2013 [from/via/route] Route 51: Moel yr Hydd. Moelwyn Mawr NRT.Moelwyn Mawr. Craigysgafn. Moelwyn Bach (MMMB). [with] Vince Wetton & Robert Taylor-Marriott [weather] Very Fair.

Vince Wetton bagged Moelwyn Mawr on May 7th, 2013 [from/via/route] Moelwyn Bach & 4 others [with] RTM [weather] Sunny Day

To add (or remove) your name and experiences on this page - Log On and edit your Personal Mountain Bagging Record

. . . [see more walk reports]



More Photographs & Pictures of views from, on or of Moelwyn Mawr

Moel-yr-hydd (left) and Moelwyn Mawr (centre) from the summit of Cnicht - the Welsh Matterhorn

Moel-yr-hydd (left) and Moelwyn Mawr (centre) from the summit of Cnicht - the Welsh Matterhorn

Photo: Martin Talbot (9)

Llyn Stwlan from Moelwyn Mawr

Llyn Stwlan from Moelwyn Mawr

Photo: Martin Talbot (23)

Croseor and Porthmadoc from the summit of Moelwyn Mawr

Croseor and Porthmadoc from the summit of Moelwyn Mawr

Photo: Martin Talbot (29)

Tremadoc Bay/Bae Tremadog from the summit of Moelwyn Mawr

Tremadoc Bay/Bae Tremadog from the summit of Moelwyn Mawr

Photo: Martin Talbot (30)

Llynnau Diffwys with Moelwyn Mawr beyond from near Llyn Yr Adar

Llynnau Diffwys with Moelwyn Mawr beyond from near Llyn Yr Adar

Photo: Martin Talbot (13)

The Moelwyns - Moelwyn Bach, Craigysgafn & Moelwyn Mawr, Allt-fawr, Moel Druman & Ysgafell Wen from Moel Penamnen

The Moelwyns - Moelwyn Bach, Craigysgafn & Moelwyn Mawr, Allt-fawr, Moel Druman & Ysgafell Wen from Moel Penamnen

Photo: Dafydd Morgan (44)

Moelwyn Mawr (centre) from the summit of Cnicht - the Welsh Matterhorn

Moelwyn Mawr (centre) from the summit of Cnicht - the Welsh Matterhorn

Photo: Martin Talbot (10)

Craigysgafn and Moelwyn Bach from the summit of Moelwyn Mawr

Craigysgafn and Moelwyn Bach from the summit of Moelwyn Mawr

Photo: Martin Talbot (31)

Moelwyn Bach, Craigysgafn and Moelwyn Mawr beyond the water leat on Moel Bowydd

Moelwyn Bach, Craigysgafn and Moelwyn Mawr beyond the water leat on Moel Bowydd

Photo: Dafydd Morgan (38)

Moelwyn Bach across Craigysgafn and Bwlch Stwlan from Moelwyn Mawr

Moelwyn Bach across Craigysgafn and Bwlch Stwlan from Moelwyn Mawr

Photo: Gerald Murphy (42)

Moelwyn Mawr from the track across Croesor Bach

Moelwyn Mawr from the track across Croesor Bach

Photo: Martin Talbot (5)

Cnicht and Cnicht (North Top) with The Snowdon Range beyond from Moelwyn Mawr

Cnicht and Cnicht (North Top) with The Snowdon Range beyond from Moelwyn Mawr

Photo: Gerald Murphy (53)

Cnicht (centre left), Moelwyn Mawr and Moelwyn Bach from Moel Yr Ogof

Cnicht (centre left), Moelwyn Mawr and Moelwyn Bach from Moel Yr Ogof

Photo: Gerald Murphy (200)

Moelwyn Bach, Craigysgafn and Moelwyn Mawr from Maen-offeren Quarry, Blaenau Ffestiniog

Moelwyn Bach, Craigysgafn and Moelwyn Mawr from Maen-offeren Quarry, Blaenau Ffestiniog

Photo: Dafydd Morgan (30)

Me on Cnicht with Moel-yr-hydd (left) and Moelwyn Mawr (right) in the background

Me on Cnicht with Moel-yr-hydd (left) and Moelwyn Mawr (right) in the background

Photo: Lynne Whittaker (1)

The north-west ridge of Molewyn Mawr from the summit of Moelwyn Mawr

The north-west ridge of Molewyn Mawr from the summit of Moelwyn Mawr

Photo: Martin Talbot (26)

Maen-offeren Quarry from Drum House at the top of a disused incline with Arenig Fawr & Arenig Fach (on the horizon) and Moelwyn Bach, Craigysgafn and Moelwyn Mawr  (mid-distance right)

Maen-offeren Quarry from Drum House at the top of a disused incline with Arenig Fawr & Arenig Fach (on the horizon) and Moelwyn Bach, Craigysgafn and Moelwyn Mawr (mid-distance right)

Photo: Dafydd Morgan (32)

The Moelwyns - Cnicht (left) and Moelwyn Mawr (right) - from Mynydd Tal-y-mignedd

The Moelwyns - Cnicht (left) and Moelwyn Mawr (right) - from Mynydd Tal-y-mignedd

Photo: Gerald Murphy (159)

Moel-yr-hydd from Moelwyn Mawr (North Top)

Moel-yr-hydd from Moelwyn Mawr (North Top)

Photo: Steve Unwin (10)

Moelwyn Bach, Bwlch Stwlan, Craigysgafn, Moelwyn Mawr and Moelwyn Mawr (North Ridge Top) (far right) from the col below Moel-yr-hydd

Moelwyn Bach, Bwlch Stwlan, Craigysgafn, Moelwyn Mawr and Moelwyn Mawr (North Ridge Top) (far right) from the col below Moel-yr-hydd

Photo: Gerald Murphy (40)


. . . see all 33 walk photographs & pictures of views from, on or of Moelwyn Mawr


Send us your photographs and pictures on, of, or from Moelwyn Mawr

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



and we shall do our best to publish them.

(Guide Resolution = 300dpi. At least = 660pixels (wide) x 440 pixels (high).)

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NB. Please indicate where each photo was taken.




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