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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
Catchment:Llyfni, Gwyrfai, Catchment Boundaries
Class:Marilyn, Hump, Simm, Hewitt, Nuttall,
Buxton & Lewis, Bridge, Clem
(Ma,Hu,Tu,Sim,Hew,N,BL,Bg,Cm)
Grid ref:SH 53975 54695
Summit feature:cairn N of windshelter
Drop:463m
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.  Please quote the hill number and hill name.

Logged Descriptions  (logged by 610 users, only the latest 50 shown - Show all)ByDate of Ascent
10th and final top of a 21km traverse from Pant-glas to Carmel, approached from Clogwyngarreg to reach stile and grassy path at the 390m mark followed by a steep path up, getting easier at the 470m mark then enjoyable once Foel Rudd reached where the path swweps round Craig Y Bera and upto the top. This top completes the Gwyrfai and Llyfni catchments, my 5th Welsh catchment of the week. Easy descent Nw then West, Sw to reach Y Fron then on to Carmel to my Airbnb...Dazingdale29/09/2023
With Twiggy from Y Fron. Back via Moel Tryfan.desperate dan02/09/2023
From Rydd Ddu, along the slate trail and then up via Foel Rudd. Very windy on top with very fine views all round. With K.sebastiencale20/08/2023
Straight up and back from Rhydwen Ddu, camping trip 2023rhif713/08/2023
Celts second mountainBatmanRobinFlash07/08/2023
Mynydd Mawr 2hr 4min 5.10m Eryri Solo. Same start/end point in Fron. Weather dry but low cloud. No views.CofiStevenStyle01/07/2023
With Dom, Corwyn, Fernando, & Oliver M. Ascent from Rhyd Ddu. Extremely windy – often difficult to stand upright. Descended towards Moel Smytho.millionmts19/04/2023
Mynydd Mawr and Clogwyngareg from Rhydd Ddu.alunrees4017/04/2023
Alumni weekend in caernavon. From NW. sheltered in cave/ mine workings high on edge of Craig Cwm Du as showeres/thunder crossed over. Then to summit, Foel Rudd and Rhyd Ddu for a pintrichardrosser15/10/2022
Parked up at the Rhyd Ddu car park, £6 for the full day. Walk back down to the village and take a left after the pub, 150 yards up the road and take a left up a forest track, keep on here for about a mile and it turns into a path, head left through the forest and you come to fence, hop ever and head right, from here is very straight forward to get to the top. I decided to not come down the way I went up but to carry on to the north east and come down near the north end of the reservoir, I would not to do this route especially in very wet weather like I had today, slipped many times coming down here and couldnt cross the river as it was running fast and deep. Had to get soaked going through deep water close to the reservoir. Straight forward walk back through the forest and finished in the local pub for food with an open fire.Buckleymon05/10/2022
Rhyd-Ddu loop. Afon Goch descent, tough going particularly the last section near the falls.Chris Williams11/09/2022
Bob, Cands, Robyn & Duke.DukeNukem12/08/2022
Final Welsh Nuttall from Rydd Ddu.Elwyn_Summers14/05/2022
Up through forest from Rhyd-Ddu car park. Good path all the way. Solo.Dangerous Dave23/04/2022
60mph winds so had to crawl down on my hands like a crab :) was quite scary. Got as far as Foel Rudd but there was very strong winds, rain and hail so will go back another day.Skarletk13/03/2022
From Rhyd Ddu. Followed forestry track and Slate Trail onto open hillside, up the ridge and descended E into valley, then followed E bank of Avon Goch down, avoiding crags. Slightly sketchy step near the bottom.welshyboyo30/01/2022
Summit overlooking nantlle valleyfreethehilltops28/12/2021
Afternoon walk after Moel Cyngyhorion in the morning. An excellent walk from Drws-y-coed, parking by the chapel a short way West along the road. Used the steep but easy track to join the ridge path and then straightforwardly to the summit along ridge path with great views, especially on way back.dickscroop27/12/2021
Varied and interesting route from Drws y Coed. Wet and windy again but enough visibility for the view over the edge of Craig y Bera to send you dizzy.cumbria mammoth09/11/2021
https://www.strava.com/activities/5801310458Sleepwa1ker07/08/2021
https://www.strava.com/activities/5720622509Sleepwa1ker31/07/2021
Up from Rhys Dduandrew.morel30/07/2021
Via Sentries Ridge on Craig Y Bera, good scramble & a fine viewpoint.DanMaisieBex26/06/2021
Enjoyable walk along Nantlle ridge on clear/dry day with thunder elsewhere. Started near Talysarn - path through quarries difficult to follow. On to Myndd Mawr and down to Waunfach. Bus worked well from Caernarfon to start / finish.davechaffey11/05/2021
From Beddgelert. Followed the slate trail to Rhud Ddu and then went over Mynydd MAwr (via Clogwyngareg) before dropping down into Bryn Gloch caravan park.WelshMountainGoat3802/05/2021
https://www.strava.com/activities/4566812927Sleepwa1ker04/01/2021
English below. Cychwyn o bentref Rhosgadfan i lawr y lôn wen i Waunfawr. Troi i'r dde ar ffordd goncrit amlwg ac i fyny i gopa Moel Smytho. Oddi yno ymlaen i Moel Tryfan, Mynydd Mawr a thrwy bentref Y Fron rownd i Fynydd Cilgwyn. Started from the village of Rhosgadfan down the lane to Waunfawr. turned right on an obvious concrete road and up to the summit. from there on to Moel Tryfan, Mynydd Mawr and through the village of Y Fron round to Mynydd Cilgwyn.rhiwgoch05/12/2020
From Moel Tryfan across to Mynydd Mawr and then on to Mynydd Cilgwynrhenciwr05/12/2020
Solo run. Day before lockdown.haydnw17/10/2020
4.9 mile up-and-down from Drws-Y-Coed hamlet, took well signed footpath through farm and up track marked on map to meet usual ascent route, climbed stupidly steeply for a little while up to Foel Rudd cairn then followed lovely ridge up to summit. Amazing views on this clear and sunny day, Snowdon on prominent display along with most of the other north Snowdonian mountains, also good views across the Lleyn Peninsular and all the way across Anglesey. We saw a few people descending as we climbed up but no one about on summit or ridge, returned the same way.DanTrig18/09/2020
Up and down from Rhyd-Ddu - windy but dry to the top and then the rain which had soaked me in the morning delivered another dose. Some impressive rock features passed by on my path.NormanW07/09/2020
Linear walk from Y Fron village centre. Mynydd Mawr, through forest to Llyn Cwellyn, Moel Cynghorian, to Llechog and down the Llanberis path to Llanberis. Taxi back to the start. Glorious weather, one of the hottest days of the year. Tough walk.Lazylizzie08/08/2020
.Ron Rees Davies16/07/2020
Ideal NYD walk to clear head, unfortunately skies didn't clear at summit.lordtonult01/01/2020
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
Rounsfell13/10/2019
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
Yr Aran and Mynydd Mawr out and back to each from Rhydd-ddu. 20km with 1100m ascent in 6 hours. (S)silveracorn_alan06/05/2019
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
https://www.strava.com/activities/4464150781Sleepwa1ker24/11/2018
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