Hill number:3343
Height:583m / 1913ft
Parent (Ma):2006  Allt-fawr
SMC/RHB Section:30B: Snowdonia
Nuttall/Wainwright area:The Moelwyns
Topographical area:WN05 Siabod-arenig
Catchment:Conwy, Catchment Boundaries, Glaslyn
Watershed:Cardigan Bay
Grid ref:SH 68822 48217
Summit feature:rock
Col:558m  SH 68406 47877  
OS map sheet(s):(1:50k) 115
(1:25k) OL17W
Observations:this top is 0.46m higher than top 60m SW at SH 68784 48170
Survey:Leica NA730
Survey of Iwerddon (Final).doc
Comments:Dropped from Dewey list in March 2010 due to insufficient drop
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill


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Logged Descriptions  (logged by 124 users, only the latest 50 shown - Show all)ByDate of Ascent
11.7 miles 2399ft walk ,start at A470 Blaenau Ffestiniog layby. to Iwerdon, Yr Allt Fawr, Moel Druman, Ysgafell Wen, Moel Meirch, Yr Arddu and Moel Dyrnogydd.stephenbuda04/07/2023
11/13 (Moelwyn Bach/Craigysgafn/Moelwyn Mawr/Moelwyn Mawr North Ridge Top/Moel-yr-Hydd/Foel Ddu/Craig Llyn Llagi/Ysgafell Wen/Moel Drumman/Allt Fawr/Iwerddon/Y Ro Lwyd/Moel Drynogydd)Fergalh08/04/2023
Iwerddon and Allt-Fawr from Crimea Pass with Rufus. Parked just downhill from the summit of the pass towards Blaenau Ffestiniog in the lay-by on the right. Followed the track WSW to the air shaft then more or less made a beeline west to the summit of Iwerddon staying underneath the crags. Followed the ridge SW to pick up sheep tracks that led S to the summit of Allt-Fawr. Retraced steps N for a short time then dropped down steeply E to the S shore of Llyn Iwerddon. Followed sheep tracks vaguely above the L bank of the stream back to the air shaft. Pretty murky morning but had a slight break looking N.jacobrichmond02/02/2023
Possible DofE Gold route recce. From car park on Crimea Pass - ridge - Allt Fawr - Moel Druman - Ysgafell Wen - YW North top - Yr Arddu - handrail Afon Lledr and E to tram track back. Solorichard6917/09/2021
Climbed with Peter Thirkettlepsburgess16/08/2020
Iwerddon, Allt Fawr, Moel Druman, Ygafell Wen, Ysgafell Wen North Top, Ysgafell Wen far North top, Moel Meirch and Moel Dyrnogydd. Parked at Crimea pass. Very hard walk, especially as it was completely pathless and very boggy rough ground from Moel Merch to Moel Dyrnogydd. Cold July day.Lazylizzie14/07/2020
In easy up NE ridgevegibagger16/04/2019
Iwerddon > Moel Druman > Moel Druman South West Top > Moel Druman South Top > Moel Dyrnogydd from GR: SH 70150 48902ronaldo33309/03/2019
A cracking November day with blue skies throughout. A470 car park to Iwerrdon, Allt-Fawr, Moel Druman, Ysgafell Wen, Yr Arddu, Moel Meirch, Cerrig Cochion, Carnedd y Cribau, Clogwyn Bwlch-y-maen, Moel Siabod, then through the forest to Dolwyddelan. Takes about 7.5 hrs in total, with terrific views to Snowden, then Tryfan and the Carnedds.summitter17/11/2018
SoloAimless Rambler08/06/2018
Moel Dyrnogydd, Iwerddon, Allt Fawr, Craig Nyth-Y-Gigfran, Moel Druman, Ygafell Wen, Ysgafell Wen North Top, Ysgafell Wen far North top, Moel Meirch, Cerrig Cochion and yr Arddu. Parked at Crimea pass. Nice day to start although very cold, Turned wet later on!Alunrees3326/11/2017
11.2 mile walk from end of Blaenau Dolwyddelan road on sunny day with high cloud, walked up lane through Coed Mawr farm climbing on good track then followed pathless route up onto Yr Arddu followed small trail to summit, pathless route towards Llyn Edno and trail to Moel Meirch summit, headed south back to Llyn Edno and onto Ysgafell Wen North Top and Ysgafell Wen (lovely and grassy), onto Moel Druman and followed easy grassy trails to Allt-Fawr, by this time the cloud started pouring onto the ridge behind us, left Allt-Fawr in a hurry down to Iwerddon on trail and then pathless across to Moel Dyrnogydd, followed lane over Blaenau Tunnel (footpath on map doesn't exist)back to car. Only saw two fisherman at Llyn Dynogydd all day. Very underrated area of Snowdonia. After walk headed home via Mynydd Nodol.DanTrig07/06/2017
ML training navigation dayunderhill15/04/2017
As Moel Dyrnogydd.jrj27/01/2017
With Dad, Alfie, Sophie. From Crimea PassJamesD197227/01/2017
Day 6 of Summer ML Training at Plas-y-Brenin which was 2nd day of expedition with wild camp going via Allt Fawr.higlett01/12/2016
as part of Nuttall walk 5.2, going onto Allt FawrDenise 16/10/2016
On way to Allt-FawrRichardM16/10/2016
Nuttall Walk 5.2: Iwerddon - Allt-Fawr - Moel Druman - Ysgafell Wen - Ysgafell Wen North Top - Ysgafell Wen Far North Topronaldo33306/02/2016
from Crimea Pass. Moel Dyrnogydd, Iwerddon, Allt Fawr, Moel Druman, Ysgafell wen, Moel Meirch, Cerrig Cochion and Yr Arddu. Glorious weather and glorious views!!AlunRees3102/11/2015
From Crimea Pass, on to Allt-Fawr, Moel Druman, Ysgafell Wen tops and Moel Meirch. Descent to Nantgwynant car park.webmaster16/10/2015
This summit was crossed on my Allt Fawr walk of the 19 January 2015.knarf19/01/2015
On own. Nuttalls route 5.2. Return route was a wet slog.Crib Goch13/10/2014
Did on a walk from Roman Bridge - Moel Drynogydd - this - Allt-Fawr - Tanygrisiau. An easy but grand walk with Allt-Fawr looking most imposing ahead.Jake99430/06/2014
From layby on Crimea pass, a round of Iwerddon, Allt Fawr, Moel Druman, Ysgfell Wen and it tops.rhalstead03/11/2013
Part of a circular route from the top of the Crimea Pass.JohnStoneham29/06/2013
Blaenau Ffestiniog skyline from Manod Bach to Craig Nyth-y-Gigfran.davidpettit8413/11/2011
Second day of CUHWC Caseg Fraith Trip. With DP. Entire Blaneau skyline from Manod Bach to Craig Nyth-y-Gigfran. Fantastic and interesting walk in excellent weather!AGWilliamson13/11/2011
From Crimea Pass (SH 70153 48905) - Iwerddon - Allt Fawr - Moel Druman - Ysgafell Wen - Ysgafell Wen North Top - Ysgafell Wen Far North Top - Yr Arddu.david23020106/11/2011
With Andy from Crimea Passmick30/07/2011
Wild camp day 2 - Yr Arddu, Moel Meirchfellowsa08/05/2011
En route to Allt Fawr and onward on Nuttall route, dry and clear so far but getting windy.Dugswell222/09/2010
Revisit date. First date not recorded. RHW07/03/2010
From Moel Dymogydd descended SW to small lake, frozen over, then continued SW eventually picking up path to Allt Fawr to snow covered summit. A good viewpoint. Cold but sunny with a cool breeze. Returned NE to crimea pass. With SH.wombourne17/02/2010
Not real date - no log kept. Allt Fawr, Moel Druman, Ysgafell Wen (and north top and far north top) Crossed this one en route to Allt-fawrijpowell10/07/2009
Bagged at the end of the Nutall round. Yes I know I did it backwards.Father Ted24/05/2009
Included with Nuttall round from car park at summit of Crimea Pass on A470 (SH 70160 48937) Not much extra effort for this one as Nuttall route more or less goes over it.David Gradwell19/04/2009
Along ridge from Crimea Pass en route to Allt Fawr.Aye Jimmy23/12/2008
With: hb sb ab; We parked at summit of Crimea Pass and walked along the ridge W then SW to Iwerddon; Allt Fawr; Moel Drummon and all of Ysgafell Wen returning by a similar route. Good views all day.Ian Baines18/02/2006
With: ib sb ab; Helen Baines18/02/2006
Start~ Crimea Pass. 702489. Took the tunnel track then climbed up onto the grassy ridge and followed it over Iwerdden to Allt Fawr. We then moved West to Moel Druman, Ysgaffell Wen, Ysgaffell Wen North Top and Ysgaffell Wen Far North Top. Descended East following the stream to Moel Lledr before picking up the Tunnel track back to the Pass. With KT.steve hudson01/03/2000
Solo en route to Allt Fawr.mikejacobs13/06/1998
last top of a solo bagging run up from Dolwydden - rough, tough and swamps-heavy going to ridge. Sun in eyes. Beautiful clear and mild (bare top at one point in December)Chris Pearson14/12/1997
En route to Allt Fawr and onwardRhayader_wander08/06/1991