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Name:Mynydd Mawr
Hill number:2007
Height:698m / 2290ft
RHB Section:30B: Snowdonia
Nuttall/Wainwright area:Moel Hebog
County/UA:Gwynedd (CoU)
Catchment:Llyfni, Gwyrfai, Catchment Boundaries
Class:Marilyn, Hump, Simm, Hewitt, Nuttall,
Buxton & Lewis, Bridge, Clem
Grid ref:SH 53975 54695
Summit feature:cairn N of windshelter
Col:235m  SH561535  
OS map sheet(s):(1:50k) 115
(1:25k) OL17W 254
Observations:cairn 20m SSE may be as high
Comments:col surveyed
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill

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N.B. Some hill summits are on private property or on land where there is no public right of way.  Permission should be sought from the landowner where access to a hill summit is through private land.
Please report via the contact page any logs you see below which describe or encourage acts of trespass, and mention the hill number and hill name.

Logged Descriptions  (logged by 501 users, only the latest 50 shown - Show all)ByDate of Ascent
Parked at entrance to track at Rhyd Ddu, followed track through forest and up onto a very pleasant ridge. Came back the ascent route as very scenic and was warned by another hill visitor who had been up there before that the Nuttalls route down the valley that I was going to take past the waterfall would be quite slippy in the frosty conditions. They said it was fine when it was dry.JulieB29/11/2019
Very windy.Dusty21/11/2019
From Rhyd-Ddu car park, through forest, to summit via Foel Rudd. Back the same wayDan Baddeley07/11/2019
Night run all the way round from YHA Llanberis. Bit of a slog up the W side but then a brilliant ridge down the E side. Nice hill.twg2717/09/2019
From Dywarchen, around west side of reservoir and east side of rocks, grass topped causeway across the bog, steep pasture up to south east ridge.Topographer5703/08/2019
With Elizyanne from Y Fron. Parking at end of tarmac road (SH515551). Path all the way to summit. Return same way.GmacT27/07/2019
From quarry, follow path up the hill. Pity we lost view in cloud. Handy in poor visibility to have a huge stone arrow pointing to the path! Good path and walkelizyanne27/07/2019
From small fishing loch near Rhyd Ddu. Nice ridge, cold wind.N.Morters13/04/2019
From Rhyd Ddu CP (£6.00) - visited Y Aran first, then back to CP & on to Mynydd Mawr (via track through forest). Y Aran is an excellent hill with a really good mountain path from the bwlch.ger28/03/2019
parked at Rhyd Ddu and followed the slate trail path which was easy to follow out through the wood. once at the first style turn right and the obvious footpath will take you all the way to the summit. due to poor weather we returned the same way.Aristotle Chip01/12/2018
Wth Tony, wet and windy. Parked at Snowdon Ranger cp, road walk to Planwydd Farm - up through forest to Foel Rudd then along to summit. Down via path NW to pick up contour path to Cwm Du and through forest to road. Road walk back to cp. (If timetable allows you could take the steam train along this road stretch!)zoob21/10/2018
Up SE ridge and down NW. Sat in the wind shelter at the top for a snack.Claireb 15/09/2018
From Rhyd-ddu via SE ridge.Winterfloodian06/09/2018
With Val. Parked at Betws Garmon. West through woodland of Tros-y-gol. Continued on path west then NW ridge to summit. Good viewpoint. Good weather.mike.hoult30/08/2018
From Waunfawr stn, up minor rd then steep path through trees to open access, easy path across heather to Moel Smytho, then good paths across to interesting rocky top of Moel Tryfan wandered South then East through old quarries to ?water works then good slog up to top of Mynydd Mawr-great views, nice walk down to Foel Rudd then steep down to forest edge then round Llyn to Rhyd-Ddu, started off drizzly brightened up, some warm sun at times.apricorum20/06/2018
parked at the end of the quarry road east of Y Fron. Delightful day and spend over two hours on the summit doing SOTA and chatting in Welsh to the former chief national park ranger.M0YDH08/04/2018
With family. Standard route from Rhyd-Ddu through forest. Windy lower down but calmer at summit.benalder28418/10/2017
From Rhudd Ddu. Mynydd Mawr, Moel Tryfan and Clogwyngareg. wet and very windy!!Alunrees3327/09/2017
Usual route from Rhyd-ddu but made the mistake of following the Nuttall route down. This was exceedingly rough going and we wasted ages trying to circumvent the crags at the bottom, eventually stumbling through the plantation to gain the lakeside track - horrible. Nice mountain otherwise with great views.milimana16/09/2017
Rhedeg fyny a lawrger_rob07/08/2017
Climbed day after the nantile ridge fine mountainFergalh30/07/2017
Drove across from Carnedd y Filiast and found that the summit was clear so couldn't resist going up. Steep but easy ans some fine vieas.IanHHill28/06/2017
Linear walk from Rhyd-ddu back to car at Betws Garmon. We used the S4 bus service one way. Operated SOTA on VHF from summit.G4OBK (Phil)22/05/2017
Parked at end of road/track SH 520 553 on the east side of Y Fron. Parking for 4 cars - popular with dog walkers. From there 50 minutes to top on clear path, with excellent views of numerous mountains - albeit I had great weather.garyhoney07/05/2017
Parked east of Y Fron. Good track/path to the summit. Great views all around. Helped that it was bright sunshine.wozzat07/05/2017
Nuttall route up from Rhyd- Ddu. Returned the same way.crax7329/04/2017
Overcast, 9 degrees, cloud dropping to 2250'. Climbed NW from chapel to south. Steep, lots of gorse and electric fences but nice bit of ridge at top with close-up views of impressive south face. Trum y Ddysgl looks higher than it is and mighty impressive. Return same route. 2 hours.Wycombe Wanderer05/04/2017
following an ascent of Sentries Ridgewainwrighteer29/08/2016
Yr Eliffant as more popularly known, especially to Cofis Dre who look at it on a daily basiswillias27/08/2016
Climbed by the usual route from Rhyd-ddu - along the forest track then up the ROW and along the E ridge. A great way up a great mountain. With the Hobbses. Clogwynygarreg + Bryn Gwyn on way down.Mark Jackson23/08/2016
Hiked on my own from Rhyd Ddu up through the forest to Mynydd Mawr via Foel Rudd and back. Bakingly hot sunny day with lots of flying insects, especially at the summit. Met only 5 other walkers and a runner.clyoung17/08/2016
This one beat me Easter 2013 when the snow was frozen and I had no crampons so had to turn back. How different it seemed today! Parked the car at Rhydd Ddu (was going to use the car park but, after the machine swallowed £3 and gave me nothing back, I parked on the main road in the village which has no parking restrictions). Took the path through the forest to GR 561 540 and then a straightforward path to the top. Had a chat with a man at the top who had a half Canadian, half Welsh accent. I think most people probably go back the same way but I dropped down to the col at GR 542 552 and then followed the gully. This was a very hard & slow route and there is no path but there is a bit of a gap in the heather in places and the odd boot print. Towards the bottom, another walker whizzed past me at a rate of knots (serious respect). Following them, I veered away from the stream and ended up in the wood which was very steep above the disused tip. I suspect I should have hugged the South side otsharp03/06/2016
From Rhyd Ddu via the forest- easy to find route and a super stand-alone hill, very enjoyable and my 50th Welsh MarilynCas-gwent25/05/2016
Up the east ridge in fine conditions but cloud not much higher and 're-covering Snowdon and others after being clear for most of the afternoon. Chill wind but not as strong as expectedvegibagger02/05/2016
Nuttall completion walk with 9 friends, by the route described in the guidebook. Wet and windy, unfortunately!davidpettit8401/05/2016
Parked at cattle grid (SH 51293 54882)near Y Fron. Pleasant walk up old miners road then easy to follow path up NW flank to summit. Returned down west side over. No path but easy enough and gives chance to visit Bryn Castell. After summit worth short walk SE along summit for excellent views of east end of Nantlle Ridge.SteveSmith23/04/2016
Super views, great hill.nicolajane30/09/2015
Follow route in Nuttall book. I strongly recommend not using their suggested descent and using ascent route both ways.lenman30/08/2015
With ScottB & TimM. Visited Vampire VZ874 & Mosquito W4008 crash sites. From Y Fron. masmith28/07/2015
From Rhyd DduRuth26/07/2015
from Rhydd DDu carpark. Overcast. 20th and last of trip. PleasantThearlaichdubh27/06/2015
With Jenx. Parked just up from Rhyd-dhu and off Nantle road. Track into forest can be driven to gate. Follow track till meets FP coming up and leads to fence line. Easy after that just 400m steep climbing. Made top in an hour. Same way back with good if cloudy views to Nantle ridge.nordicstar25/06/2015
As part of the RCSL Snowdonia Challenge.matthewgibbs06/06/2015
A slightly cloudy/rainy ascent, firstly over Foel Rudd and then onto the summit along the ridgeline. The weather cleared as descended towards and then through the slate working around Moel Tryfan. We returned past Llyn Nantlle Uchaf and through the valley back to the Snowdon Inn Campsite.Ginger Dave24/05/2015
Nuttall walk 4.3: Foel Rudd - Mynydd Mawrronaldo33322/05/2015
CUHWC Rhyd Ddu Trip. A gentle Saturday walk with ALF. Ascent from Rhyd Ddu, through forest, beside fence to Mynydd Mawr. Cloudy and showers, but improved later in the day. Returned over the two smaller peaks to the east.AGWilliamson09/05/2015
From Rhudd Ddu car park. Mynydd Mawr, Moel Tryfan and Clogwyngareg. Absolutely stunning weather with some truly outstanding views :-)AlunRees3107/04/2015
Ascent up Mynydd Mawr from Rhyd Ddu.Owain G29/12/2014
From Rhyd-ddu. Fine clear day, but bitterly cold wind. Lovely walk and views.Dewi Prysor03/12/2014