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Name:Moel y Dyniewyd
Hill number:2038
Height:382m / 1253ft
RHB Section:30B: Snowdonia
Nuttall/Wainwright area:The Moelwyns
County/UA:Gwynedd (CoU)
Class:Marilyn, Hump, Tump (300-399m), Clem
Grid ref:SH 61269 47738
Summit feature:rock 2m E of remains of cairn
Col:174m  SH635492  
OS map sheet(s):(1:50k) 115
(1:25k) OL17W
Observations:ground about 10m N is 10cm lower
Survey:Abney level
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 200 users, only the latest 50 shown - Show all)ByDate of Ascent
From the copr mines via Bwlch-y-Sygyn then along to the style at SH606481 where there is a path on the north side of the fence all the way to the summit. Returned same route but explored various mine shafts on the way down. With elizyanne.GmacT24/07/2019
Lovely day Zig zagged up the hill above copper mine museum. Followed path up until stile then followed path up hill to small summit. Headed back and examined copper mine workings. Interesting walk with different settings.elizyanne24/07/2019
From Llyn DinasJamesD197211/04/2019
From Nantmor CP (£4.00). Moel-Ddu & its W top visited first - then back to CP & on to Moel Y Dyniewyd (there is a path through heather from high point of pass). Moel-Ddu is an excellent hill with super summit views - I basically followed the mapped path but made the mistake of not crossing the FB early on in the forest & following a signed path that is not mapped.ger27/03/2019
From Beddgelert circular via Cwm Bychan. Great summit with panoramic views.twg2714/03/2019
From Aberglaslyn via good path up Cwm Bychan. Back same way and caught steam train back to Porthmadogtrimarc207/10/2018
From Aberglaslyn car park. Nice little circular in some dismal weatherAlunrees3307/08/2018
Third of three tops, after walking over Craig y Llan and Crib Ddu. There is a path from Crib Ddu, make sure that the fence is to your right almost all the way to the to. Near the top cross a stile to reach the top.Buteobuteo13/05/2018
From Sygun via crib ddu tump (well worthy). A fine top this. A similar sort of view to that from the nearby Cnicht. Some tops were in the clouds including the usual suspect Hebog. Descent varied down to Llyn Dinas. A fine 10k route.3 Welsh Marilyns left now.stig_nest27/03/2018
From Beddgelert,down the Aberglaslyn Pass and up through Cwm Bychan.mad max16/01/2018
Pont Aberglaslyn - Bryn Banog - Moel-ddu - Pont Aberglaslyn - Moel y Dyniewyd - Pont Aberglaslyndavidpettit8429/12/2017
Walked up Cwm Bychan from the car park past the interesting mine remains, then up from the bwlch on steep path near the fence. Superb views.Neolith14/07/2017
With Trefor. From layby on road near old copper mine. Path to Llyn dinas then forked SE and followed path to Bwlch-y-Sygen. Faint path from the col to the summit. Very hot weather.mike.hoult21/06/2017
From Sygun mine. With Craig yLlan & Grib Ddu. Went down the mine after, as I had parked in their car park. Worthwhile.ngthack09/06/2017
Me and Alf.jrj28/12/2016
Part of an early morning run from the LMC hut in BeddgelertShutterlag25/11/2016
From Sygun Mine on day of Snowdonia Marathon up mountaun walk then just followed track to summit. Returned by row to Llyn Dinas. Excellent little hill.SS29/10/2016
Second ascentPeteF24/09/2016
From Beddgelert we climbed up to SH 6054 4868 above the Sygun Copper Mine from the back lane. Then via Bwlch-y-Sygun (easy scramble) to Grib Ddu. Then followed wall to summit. Returned to Grib Ddu then took the path down to Llyn Dinas and walked back to Beddgelert on the A498 roadside.G4OBK (Phil)16/08/2016
Pretty tough walk from Beddgelert to Nant Gwynant hostel, coming up here first and then on to the two Cnicht Pedwars. Met Maria P futher along, who was a very close person in my life for over a year. You never knew know who you just might bump into whilst out on the hills ...Twice Shy29/07/2016
Parked in Beddgelert, circular walk. Through Aberglaslyn pass along the fisherman's path, then up Cwm Bychan to the top of the pass, then followed fence line to the top. Walked along faint paths to the right of the fence before realising better paths on the left(climbed over fence). Descended same way then onto Grib Ddu and Craig Y Llan. Dropped down path direct to Beddgelert.Rob5003/07/2016
From Sygun copper mine- best route is to take the obvious track which reaches the crest of the ridge well to the west of the top, then follow the path which parallels the top fence to the summit. This was my return route- outbound involved a lot of heavy cross country yomping!Cas-gwent05/05/2016
From track to nne via two locked small bothy type buildings and subsidiary tops then wnw to tump summit and sw to tump summit then down into Beddgelert and two mile hitch up the road.vegibagger30/04/2016
A nice walk in torrential rain from Beddgelert. An easy stroll to Sygun mine. I had the brilliant idea of going up via the Bwlch-y-Re. No chance. Although there has been work to clear the rhododendrons, the path has totally gone. You can see where it used to go, though. It was obviously well engineered in its day. I had to back track, and then go up Bwlch-y-Sygyn, which is very easy. There is a good track all the way to the main path, dodging round a knoll (worth climbing), past a mine, and across to the pass. There is a decent path up to Moel y Dyniewyd with odd bits of rocky stuff where it gets steep. There were even views from the top, despite the rain. Back via Pont Aberglaslyn, then tea and cake in Beddgelert. It's a very nice walk on a lousy day!Gill26/07/2015
From Sygun copper mine car park. Paths a little confusing on OS. Climb to copper mine building entrance and follow sign for mountain path. This leads SW and passes the upper mine exit. Continue to ridge at 300m. From here if the weather is clear tou can see the top and it's a matter of following the best line, but typically using the fence line. In the mist bear leftand look for a small cym. Exit out the back of this and at highpoint bear right and join a good path to ladder stile. Just before this on North side of fence a faint path leads all the way through knolls and rocky outcrops to summit, marked by a small cairn 10m from fence line. Need to cross the fence via a second ladder stile prominent high on the skyline.nordicstar25/06/2015
Interesting and picturesque ascent from Sygun mine road endThearlaichdubh22/06/2015
From the layby at Sygun Copper mine. 2 hours 15 minutes via the path to Bwlch y Sygun. With GB.bolton14/04/2015
Parked in layby by entrance to Sygun Copper Mine From mine headed SW up excellent path & then turned E & headed up to col at SH60676 48133 After crossing stile, SE up path to summit. (PM)gerrybowes14/04/2015
Solo. Left Cabe and Bev below.simon and co09/04/2015
Roadside parking in layby near entrance to Copper Mine. Pleasant walk up on well-made path to SH 60255 48205, then smaller path to SH 60685 48135 then trace of a track to summit. To make a circular walk planned on descending down Bwlch-y-Re - big mistake due to rhododendron infestation, which is being cleared at this time. Had to retrace our steps 200m or so back up the hill under difficult conditions.jonglew24/10/2014
From Beddgelert via copper mine and back via Aberglaslyn. We made friends with a ginger tom cat who followed us up the path from the copper mine and refused to turn back. We sped on in the hope he would stop following but he kept on until he grew tired and had to stop. However his sorrowful cries made me feel very guilty. I hope he found his way back down. Pulled up many rhododendrons too.mindlessflogger16/03/2014
From the copper mine to the north on the minor road. It was a surprisingly tough trek for such a low mountain.clivevilla24/10/2013
After visiting Sygun Copper mines on the way home from bagging Mynydd Mawr and Clogwyngareg. Bonus at the end of an already good day :-)HillboBaggings29/04/2013
Solo: too ill for the Glyders so bus to Beddgelert - Craig y Llan - Mynydd Sygyn - Moel y Dyniewyd - Mynydd Llyndy - Bethania - Cwm Dyli. Snow mostly gone at these levels. Lovely little chain of hills in heather and sun, views of greater things.Mark Jackson02/04/2013
A bit more tough going to get up this one than the height would suggest.Alex C02/11/2012
From Llyn Dinas, with Mynydd SygynSprog08/09/2012
From Llyn Dinas. Lake was 3 ft higher than normal so the track at the start was well under water. Managed to scramble up and over to the bridge which was clear of the raging water. Went up with my 5 yr old in gusts that frequently knocked him of his feetgaryhoney03/01/2012
Circular walk from Beddgelert up to Llyn Dinas and then ascended to top and back down to Beddgelert.ness135331/10/2010
From Beddgelert via Pont Aberglaslyn.Wheelsy07/03/2010
From the footbridge at the S end of Llyn Dinas by good path up to the cwm the a little bit rougher. Started snowing on the return in the last of the daylight.But you're too late, mate - off to Penrhos Isaf.Eddie23/02/2010
View of Snowdon, From Beddgelert via Cwm Bychan & Llyn Dinasapricorum12/09/2009
From NT car park excellent up to the col then takes longer than you think to the top. Best to try to stay near the wall if possible.destaylor03/09/2009
From Beddgelert over Mynydd Sygun- a maze of paths in charming country followed by a rough path alongside a new fence to the Marilyn top. Though not as attractive as surrounding tops it is a very good viewpoint. Retraced by the fence then path down to copper mine, Llyn Dinas and back. 3h 35for 5.25 miles reflects the rocky undulating heathery terrain. With brother, who had bagged it previouslypwheeler15/03/2009
see Moel Hebog dbb20/02/2009
Christmas Day! Parked on minor road to E, series of disjointed tracks with rocks and heather higher up. Good viewpoint though.Aye Jimmy25/12/2008
Walked up from Nantmor along the Cwm Bychan Lovely walk and good views from this seldom visited hillChinnockC25/05/2008
Walked up from Beddgelert on the last day of a very wet week, typical today was glorious and I only had time for this one before driving home.rhalstead07/07/2007
Walked up from Bryn Gwynant Youth Hostel taking the path through the farm off the main road at Bethania. Access OK by this route but paths often indistinct and tricky undergrowth.Father Ted26/11/2005