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Name:Banc Llechwedd-mawr
Hill number:2166
Height:560m / 1837ft
RHB Section:31A: Aberystwyth to Welshpool
Nuttall/Wainwright area:Central Wales - Pumlumon
County/UA:Powys (CoU)
Catchment:Rheidol
Class:Marilyn, Hump, Dodd (500-599m), Dewey, Clem
(Ma,Hu,Tu,5,Dew,Cm)
Grid ref:SN 77544 89844
Summit feature:ancient cairn
Drop:161m
Col:399m  SN783920  
OS map sheet(s):(1:50k) 135
(1:25k) 213
Observations:shelter 35m N is 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 143 users, only the latest 50 shown - Show all)ByDate of Ascent
With: hb; Parked in large space at SN773879 then walked along track above Maesnant. Crossed the boggy ground (which was dry) to the new unmarked bridge at SN779892 then ascended over easy ground east of the stream to the top. Returned by same route.Ian Baines27/07/2019
After Plynlimon and before Drosgol. Operated ham radio from summit for SOTA. Note crucial footbridges at SN 779891 and SN 766888.G4OBK (Phil)06/04/2019
See Drosgol entryNeil Midgley29/08/2018
Second of seven Dewey's on a walk of around 20 miles from the memorial west of Drosgol taking seven and a half hours. Route started over Drosgol then after this one continued onto Foel Grafiau, Foel fras, Pen y Darren, Pen Creigiau'r Llan and Banc yr Wyn.WAYNE ROWLETT26/05/2018
From the old mine track upstream of Nant y moch. Two wet crossings which were deep enough to nearly fall in- just about managed to pedal through!. Left bike at the lived in Llechwedd Mawr cottage (amazing spot) and scurried up initially pathless but then on quad bike track. What a summit this is.. A definite wild camp spot. My penultimate Welsh Marilyn.. now off to the last un down Elan...stig_nest19/04/2018
From Measnant road end and footbridge at 780 892, then direct ascent.Lionel Bidwell25/10/2017
From dam car park, a round of Banc Llechwedd-mawr, Drosgol and Disgwylfa Fawr.rhalstead27/05/2017
Came over from Drosgol, dropping down off the NNW slpoes to the newish footbridge. As someone else has stated there are some deep wet holes in the area just south of the bridge. Then up the steep bank of Banc Llechwedd-mawr, using a walking pole for the first time - only one as I had to have the dog on a lead in the other hand because of all the sheep. Almost 60 and only just discovered walking poles! Returned S via the ridge, dropped down on an ATV track to the river which was easily crossed then up the nearby TuMP to finish the day.Father Ted22/05/2017
KeithByTheC21/05/2017
Nice walk round from the forest south to Drosgol via an almost impassible ROW which is an old leat. Then up the slope on better ground. Dropped down to the ruin of Drosgol Farm, then over the bridge and up Banc Llechwedd Fawr, then north past Hyddgen, Bryn Moel, Foel Graffiau and Foel Fras before dropping down onto a heavily eroded bridleway back to the car.Neolith11/05/2017
Parked by Nant-y-moch reservoir dam and did a counter-clockwise walk round the reservoir via Banc Llechwedd-mawr, Drosgol & Disgwylfa Fawr. Good long walk, some on rough ground. I took footpath by reservoir near Maesnant farm: non-existant path and very rough ground. Using parallel road and permitted path would have been a much better option!Cas-gwent10/05/2017
1/5 (Banc Llechwedd-mawr/Car Htddgen (Carn Gwilym)/Foel Uchaf/Foel Isaf/Llechwedd Crin)Fergalh07/05/2017
Via Maesnant road end, Plynlimon and footbridge 780892. Beware of deep and wet hoof prints around the bridge.Topographer5706/04/2017
Big parking area just south of road end. Out over Cefn yr Esgair to old farm buildings thentooks ATV track virtually to summit of Drosgol. Took north east ridge off down to footbridge then headed to renovated house and cut up hillside picking up another ATV track which again went nearly to summit of Banc Llechwedd-mawr. Descended same way and returned via bridge and contoured round Drosgol before taking track back to car.SS02/04/2017
#622tim74723/03/2017
A nice walk from the Monument on a January day with the bogs well frozen. Trainers and waterproof socks perfectly sufficient to cope with all bogs and rivers. Along the mine track to the farm buildings above Nant y Baracs. Easy across the bog, then straight up Drosgl in the sun, occasionally on ATV tracks. Fine views. Down to the bridge over the Afon Llechwedd Mawr. Easy going. Straight up Banc Llechwydd-mawr, to an ATV track along the ridge, unfortunately now in cloud and very cold. Back tracked down the ATV track to the ford over the Afon L.M., ankle deep splish splosh, then to a gate and an ATV track across the magnificent bog, only a few wet bits. Back via the track.Gill21/01/2017
Solo. From Maesnant. Followed track until bridge then cossed and steeply up to summit. Long tussocky grass lower down made hard work of some of the route. Weather fine but cooler than recently.mike.hoult16/09/2016
Nant-y-moch round. Yr Helfa Las, Banc Llechwedd-mawr(footbridge over river south west of junction of rivers) Drosgol, Cefn yr Esgair, Bryniau Rhyddion, Bryn Gwyn. 11 miles 3,000ft of ascent.ijpowell08/07/2016
After Plynlimon, down to bridge then up East ridge on Drosgol, then Banc Llechwedd-mawr before back to bridge and start point.nordicstar22/02/2016
Parked at road end nr Maesnant. Up the stream line almost direct to the top of Plynlimon. Easy walk. Carried on round above the corrie and down the ridge/ valley line towards the new bridge. Out to Drosgol first and then back and over BLM. About 5 hours. Mostly ok underfoot and the bridges were handy.jenx22/02/2016
Maesnant carpark, over bridge to NE, over BLm, then onto Drosgol. In mist and drizzleThearlaichdubh12/09/2015
Damp start to the day from overnight bivvy at Llyn Llygad Rheidol.Alex C01/08/2015
From Drosgol to this summit via the refurbished cottage. A return via Nant y Baracs to the car at 736887. With GB.bolton12/06/2015
Parked by cattle grid near Memorial at SN736887 Along track & then over Cefn yr Esgair to farm buildings Up track & then up W. slopes of Drosgol Down to footbridge (built 2007) at 766888 & up to summit cairn Back down W. ridge (4x4 track in places) & Afon Llechwedd-mawr easily crossed (low water) Rough going across bog to farm buildings & track back to car. (PM)gerrybowes12/06/2015
Parked near Maesnant and made use of the two new footbridges over the Afon Hengwm and Afon Llechwedd Mawr to bag this hill and Drosgol.Sprog25/04/2015
Parked by Nant-y-moch dam. Y Garn - Pumlumon Fawr - Pumlumon Fach - Pumlumon Llygad-bychan - Pumlumon Arwystli - Nant y Llyn - Banc Llechwedd-mawr - Drosgol - lane round west of reservoirdavidpettit8407/09/2014
From Carn Hyggden. Found SOTA aerial on top. Camped just under summit on west flank. Lovely sunset.mick04/09/2014
Parked at Maesnant, GR 775880, space for 3 or 4 cars. Continued along track crossing Afon Hengwm on stepping stones and then Afon Hyddgen with a long jump. Climbed Carn Hyddgen then descended SW continuing to Banc Llechedd-mawr. Descended steeply SE down grass/heather slopes. With SH and Ron.wombourne14/05/2014
Start ~ 775880, end of road at Maesnant. Followed a good track to the Southern end of the hill and climbed north to the twin cairned summit of Carn Hyddgen. Descended West crossing the Afon Hyddgen at a sharp bend before making our way up Banc Llechwedd-Mawr from the North. Descended due south to new footbridge over the Afon Hengwm.steve hudson14/05/2014
climbed with Jon. not such a nice day, but fairly easy apart from getting the feet and boots really wet on the way back. we decided to cut the corner and wade through the river.tallblond19/11/2012
From Maesnant. Terrible terrain across the bog, but views north were incredible, Cadair clearly visible.huwthomas26/08/2012
Afternoon ascent from Maesnant.JohnW23/07/2012
from maesnant - nice river corssing but actually then a nice hillgigglejon11/07/2012
Nicer underfoot than Drogyl - less tussocky Molinia grass. Crossed river in sandals near SN7612589022 and reached top at 11.15am. Back at car 70 mins later after trudge through felled plantation.signyred18/06/2012
Combined 8.3m walk with Drosgol. Parked by memorial west of mountain.clivevilla25/08/2011
Parked @ Maesnant then used my 20 year old walking sandals to keep my boots dry while crossing the Afon Hengwn. Ski poles helpful as water came close to my knees at times. Pleasant walking to bag both Marilyns.Dugswell228/06/2011
After descending long slope from Plynlimon Fach crossed river below footbridge (some cyclists used this). Up valley to near standing stones then L up the hill.Aye Jimmy18/04/2010
From end of public road along Llyn Nant y Moch. Fording rivers around 1 foot deep.Jim T10/04/2010
(cont fr Plynlimon). Managed to jump 2nd stream , then up grass slopes to summit. SW down ridge to find another providential bridge at 765888. dbb29/03/2009
AlanGlenford22/02/2009
From Car park to South West. Pleasant hill. BUT VERY hard to cross the stream if there is water - which there was. Ended up boots off crossing on way out and walking across (with walking sticks) on way back. VERY wet boots! Hard walk with Drosgol.destaylor17/02/2009
Track from W, around res., and up then onto Banc Llechwedd-mawr and return to track.Eddie12/06/2006
Parked @ Maesnant. Difficulty crossing Afon Hengwn - got wet. Met 2 blokes scouting out route for Pumlumon Challenge. They said they might get bridge build to ease crossing - never checked out if it happened! Straight up to top-has good shelter.robphys18/09/2005
Doing a clockwise circular from Glaslyn over Plynlimon.Alan Moore24/01/2004
Galltywenallt20/04/2002
End of road at reservoir. 1 1/4m on access track to cross Hemgwm by a ford. Waded across up to calves. Very uneven lank grass swamp to narrower stream - water up to knees! Over wire fence and to 3 or 4 false summits to top at 12.00. Ravens. Skylarks.arranc14/07/2001
petey07/07/2001
Plynlimon Dewey bagging, walk 3/4; Glaslyn track 826936 - Clipyn Du - Foel Grafiau - Foel Fras - Moel Hyddgen - Pen Creigiau'r Llan - Moel y Llyn - Banc Bwlchygarreg - Banc yr Wyn - Banc Llechwedd-mawr - Carn Hyddgen - Foel Uchaf - Banc Bugeilyn - car. RHW14/02/1998
w/e form Sheffield running/bagging 2000ers and marilyns with Rob Small. Long day encircling Nant y Moch reservoir.Taking in all Pumlumon tops and marilyns to n as well. A very wet November day...and then camped.Must have been keen.Chris Pearson12/11/1994
From SN 774 878 via Hyddgen. 2005?summitsupblank