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Hill number:2145
Height:678.5m / 2226ft
RHB Section:30F: Dolgellau to Machynlleth
Nuttall/Wainwright area:Cadair Idris
County/UA:Gwynedd (CoU)
Class:Marilyn, Hump, Simm, Hewitt, Nuttall,
Clem, Trail 100
Grid ref:SH 81731 15037
Summit feature:ground 2m E of cairn
Col:360.4m  SH802170  
OS map sheet(s):(1:50k) 124 125
(1:25k) OL23E
Observations:ground 45m SW at SH 81700 15006 is about as high
Survey:Leica NA730/Leica RX1250/Trimble GeoXH 6000
Survey of Maesglase.pdf
Comments:Former Marilyn, Hewitt and Nuttall summit is hill 2146
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 388 users, only the latest 50 shown - Show all)ByDate of Ascent
Third top of three following Nuttalls twelve mile route from Aberllefenni. Route took in Waun-oer, Cribin Fawr and Maesglase.WAYNE ROWLETT29/02/2020
Aberllefenni > Cwm Ratgoed > Mynydd Ceiswyn > Waun-oer > Cribin Fawr > Craig Portas > Maesglase > Craig Portas > Mynydd Dolgoed > Ratgoed Hall > Aberllefenni.Winterfloodian17/09/2019
From the east, parking on minor road NE of Tyn y Celyn, then marked path directly to summit. Local symbols show this as an access path but it passes directly between TC and its garden. A barking dog alerted a local resident who was pleasant enough and said it was up to me, but advised me to go another way as the way forward was very steep and not advised by national park. Any other route would have been much longer so I pointed out the access sign and continued. A grassy track led up to 400m but then became little more than an animal track, but the only seriously steep ground, near the top, was bypassed.Topographer5727/08/2019
From Craig Portas, fine grassy hill, rain had stopped. A long day of following fence lines! Decided to descend via the waterfall.DanMaisieBex03/08/2019
David Meeson18/06/2019
This was our second attempt at this summit. Last year we followed the Nuttalls Walk, nice and easy up and through a shady forest. Then we emerged into the hot sun. Water supplies got low by the second summit and I became light headed ... dehydration, so we headed downhill. So this time where to park for a shorter walk. Decided on a lay-by on the A470, Not show on OS maps, but 2km NW from Dinas Mawddwy . Lay by seemed part of old road, under trees and very little used. OS 849 164. Track directly from lay by. But little used with fallen trees and the map was cluttered and hard to follow. Didnt seem to be a good starting point. Eventually we were heading SW up the valley and followed the path. In hind shift it might have been better to continue west to the fence and walk along that. Eventually we got to the summit - Craig Rhiw - Erch. Then back to Maen Du, over the stile and follow a twisty path steeply down. (OS maps phone app very useful confirming we were going in the rMalcvolm01/06/2019
Via Bwlch Siglen and Craig Measglase, a spectacular route. Very steep descent from Mean Du.Susan Bidwell30/04/2019
From A470, up by bwlch seglen and Craig Measglase to summit and back to Mean Du for very steep descent to Tyn y Celyn. A spectacular route.Lionel Bidwell30/04/2019
Cribin Fawr Far North - East Top > Cribin Fawr North - East Top > Cribin Fawr > Craig Portas (Mynydd Dolgoed) > Craig Portas East Top (Mynydd Gartheiniog) > Maesglase South Top > Maesglase (old GR) - Maen Du > Moel Cwm yr Eglwys from GR: SH 81913 16372Hippster16/02/2019
Cribin Fawr Far North - East Top > Cribin Fawr North - East Top > Cribin Fawr > Craig Portas (Mynydd Dolgoed) > Craig Portas East Top (Mynydd Gartheiniog) > Maesglase South Top > Maesglase (old GR) - Maen Du > Moel Cwm yr Eglwys from GR: SH 81913 16372ronaldo33316/02/2019
Solo. From lay-by on A470 near Dinas Mawddy ( approx GR 857149). Steeply up through forest then long contour to Bwlch Siglan. Up path running parallel to edge of forest then around escarpment to Maen Du. On to flat summit of Maesglas. Descended following fence SE then rejoined outward route. Great weather. Poor paths and slow walking . Took longer than expected.mike.hoult22/10/2018
#649 A470, Cribin Fawr, Craig Portas, Maesglase, Maen Du, Bwlch Siglen, Foel Dinas, Dinas-Mawddwy.tim74727/09/2018
P on handy grass verge at approx 830152. Good track to start - main height gain on very overgrown path - then ok incipient path in moorland. Visited Maesglase first, then Maen Du - good views down to A470.ger26/09/2018
Parked at Bwlch Oerddrws - Cloddfa Gwanas - Waen-oer then followed the grassy ridge fences to Maesglase (a grassy giant). Impressive and quiet. Returned retracing our steps. Coffee and bara-brith at Cross Foxes as a treat at the end.briandavies25/09/2018
Up from CP/lay-by at SH 826 164 via Moel Cwm yr Eglwys and old summit. Wanted to confirm summit with belt-and braces as the re-location not in the diary. It was in my RHB, though.Eddie23/08/2018
A Peckish22/08/2018
Ian and gangkenthompson13/05/2018
Ascent via Craig Maesglase from layby on A470. Good views and pleasant walk.The Playful Pig28/04/2018
From Dinas Mawddwylenman14/09/2017
From Dinas Mawddwy thru' Minllyn Slate mine and via Foel Dinas.Returned via Craig Buarth-glas.THE WORM10/08/2017
Long hot walk from Dinas Fawddwy, fantastic views.Taz3818/07/2017
The farmer at Ty'n y braich kindly let me park at the farm so it was an easy walk up the pleasant valley to bwlch siglen. Going round to the summit the ground was quite boggy and the path surprisingly close to the edge of the cliffDavid Bell01/05/2017
From cad west car park, Mynydd, Ceiswyn, Waun-oer, Cribin Fawr, Cribin Fawr East top, Mynydd Dolgoed, Craig Portas, Craig Portas East Top, Maesglase, Maesglase old top, Maesglase South top,back over Waun oer to cp 8hrs walkingunderhill21/01/2017
the top is best reached via craig portas a climb up the spur and onto the top. follow the fence path instaed of the rough ground on a direct bearingAristotle Chip16/12/2016
Charli Wisbey26/11/2016