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Name:Mynydd y Glyn
Hill number:2295
Height:377m / 1237ft
RHB Section:32C: Neath to Chepstow
County/UA:Rhondda Cynon Taff
Catchment:Taff
Class:Marilyn, Hump, Tump (300-399m), Clem
(Ma,Hu,Tu,3,Cm)
Grid ref:ST 03193 89647
Summit feature:no feature: pasture
Drop:189m
Col:187.8m  ST 0033 9057  
OS map sheet(s):(1:50k) 170
(1:25k) 166E
Observations:trig point 450m SW is about 1m lower
Survey:Abney level
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 216 users, only the latest 50 shown - Show all)ByDate of Ascent
3/5. Parked at the track entrance to Langton Court Farm to the SE. Followed footpath up track and into pasture field before regaining a track up to the trig and along to the hp. Met a dog walker so didn't seem to be any access issues. Solorichard6929/11/2023
Room for one car to park at road junction to Langton Court Farm. No access problems reaching trig through grass fields and unlocked gates. Simple walk from trig to high point. Lovely views. With Jill.Dangerous Dave07/11/2023
8 mile anti clickwise circuit from Barry Sidings Country Park. Up through paths and tracks to top of forest, over fence at 040900 ish, then up to summit, along to trig, fown to Langton Ct farm, bridletrack to 052889, then north up bridletrack Cross fence back into forest, took main track east, then north east,then tracks and path down to carp Park. Nice walk but so many paths and bike tracks in online os maps was very handy for navigating.JulieB02/01/2023
From ST 0206 8984.summitsup28/08/2022
Parking for 1 car at 043883, up past houses and farm buildings and across a couple of fields with cows and bulls...beware, they stared but no problems, went down and around the hill to the right before ascending south to trig, nice walk, nice views, same return 80minsTribal2er12/08/2022
Up from langron court farm. Parked on bend in road by junction. Visited the pillar and an unsuccessfull searh for the surface block to the north. Sheep pasture, with cowscjo29/06/2022
Parked in Trehafod and ascended via bridleway, forest tracks and across open ground to trig and summmit.davidpettit8421/11/2021
2.8 mile up-and-down from housing estate in Cymmer, Porth north. Followed right of way up until where it disappears into some spoil heaps. From here we followed sheep tracks over the spoil heaps and up the fern-covered hillside until the easy grassy terrain on top is reached. We walked up to trig and across to the proper summit which seems lower but according to my GPS is higher. 1st Marilyn of 5 today. Afterwards we bagged Cefn Eglwysilan, Garth Hill, Craig Yr Allt and Wentwood. Grey/murky conditions limited the views. 242m ascent.DanTrig05/09/2021
From road to south via Langton Court Farm.Winterfloodian01/09/2021
Parked in Maesycoed and followed road then footpath (route difficult to follow without GPS)Stevooo03/07/2021
Parked at start of track to Langton Court Farm, then PRoW to field above farm & then over pasture to short steepish climb to the trig & then on to the summit. Rain to E & N.DanMaisieBex16/05/2021
Up from Langton Farm side and down to Trebanog.Arbie27/04/2021
park bend at start of langton farm up tracks and pasture to tp then on to summit fine views of the rhondda fach and fawr valleys return same 4.3 ks 50 minsunderhill14/04/2021
From limited parking at bend/track to Langton Court Farm. Up track past farm then grass fields to summit. 1/7 MarilynN.Morters26/08/2020
Parked in Trebanog housing estate at the top. Track towards farm, gate and second track up, says private but cheery wave from farmer. Notice probably to discourage mad off road bikes. Great views of coast and valleys.iangalbraith17/08/2020
Marilyn 4 of 4 on a wet day with no views. Parked at 044884 and walked to the trig first then on to the festureless high point. Nice chat with the lady at the gate of Langton Farm walking her alsatian.NormanW07/10/2019
1/2 Parked on road corner and followed track up to Langton Court Farm and then footpaths/through fileds to the top, good views, lots of sheeppenbet26/07/2019
Mynydd y Glyn from Trehafod station, Cefn Eglwysilan from Treforest station, and Garth Hill and Craig yr Allt from Taffs Well station, all on the same day.Mark Jackson26/10/2018
From road bend south of Langton Court, up past the farm and into the fields. Like so many right of way paths in England and Wales, this one ends with a barbed fence where according to the map it should continue with a marked stile.Topographer5701/10/2018
From SE, as others. FP seemed to off piste, but route ahead was obvious. Large pole lodged in Trig point which I doubt will survive a healthy breeze. Also went to HP but concur that trig looked higher. Good view all round and across the Bristol Channel.PeterD05/08/2018
Trig point definitely looks higher!elizyanne15/07/2018
6/7 Marilyn day. The ascent of Mynydd y Glyn from the road at ST 032 889, up the farm track and public FP to ST 038 895, then across to the trig and by the wall to the HP. Back the same way. A round trip of 4.5km in 1 hour. (S)silveracorn_alan09/05/2018
From bend in road to SE, as many. Parked at start of track to Cefn-Coed, walked past Langton Court, fp then direct to gate and trig point. This far, a Vale of Glamorgan hill but from the HP the view is classic right into the Rhondda. Pleasant 75 mins return walk from this side, glad I didn't try and do it from public transport as I thought I would. You do get a view of another trailbike trashed area above the forest but all was quiet on this sunny Friday afternoon.pwheeler20/04/2018
From SE. Parked at start of track to Cefn-Coed and Langton Court farms. More horsey places - gone hill-walking to escape the beasts! Up track and across fields to Trig and summit (further on!)Minto10/04/2018
Third hill of a train bagging day, after Garth Hill and Craig yr Allt (from Taff's Well station). Onto the train to Trehafod, then up various bits of road and steps to join the bridleway heading steeply through the forestry. The BW is a bit wrecked at first, thanks to the attention of motorbikers, but it improves higher up. Across the first forest road, then right along the second road to exit the forest. The sun in my eyes made me think that the remediated slag heap was a nasty bog, so I followed the road to where it hits the forest fence. Through a hole, then various tracks around the side of the slag heap, through a gate and onto the hill. Not as boggy as it looks, then easy grass to the trig. Strolled along to pt 377, from which the trig looks much higher. Back easily across the slag heap, and down through the forest. The return train turned up 2 minutes after I arrived back at the station.Gill19/01/2018
OtisGlenford28/12/2017
8/8M last of the day parked bend in road track past farm then through fields to trig and summit further on.robertphillips09/11/2017
Started at Barry Sidings Country Park, walked up through the forest, lots of unmarked paths and extra trees since our map was made so it was a bit of a navigational challenge but figured if we kept heading uphill we were on track! Eventually worked out exactly where we were, left the forest and crossed the field to bag the trig point and the high point. Really lovely walk on a beautiful sunny dayWackywelshy23/09/2017
With: hb; From sharp corner in road, met owners of Cefn Coed on horseback. Walked past this then Langton Court FM then followed track for 300m before striking off direct to trigpoint. Went past this to real top then returned back over Trig again and down to car.Ian Baines19/08/2017
With: ib; Helen Baines19/08/2017
With TJB. Used FP past Cefn-Coed farmtrimarc227/07/2017
As others have, we parked at the end of the entrance to Cefn Coed farm. We followed the lane and then RoWs some of which are blocked, but there are easy diversions. Went to the trig, then the summit. Beautiful day with extensive views. With Keith and baby Ross.islamidget08/05/2017
Parked at bend in lane near Cefn Coed farm. Spoke with lady on horse about potential wind farm development planned. Lets hope not Track leads to open fields though dubious line as this seems to be barb wired. At the point where the fp goes diagonally across the fields I headed for the obvious top. Passwd by the trig point and over to unmarked grassy summit. Young lad with dog talking to someone on his phone seemed happy with the view too. Returned via trigpoint. Blister developed which cut my weekend short (but not before popping out to Pembs county top.)stig_nest16/09/2016
From Langton Court Farm. Good views from top.twg2701/07/2016
From E end of Trebanog estate. Plentiful parking. Followed tracks NNE for 1000m before taking summit beeline.jimbloomer28/05/2016
Fed up of driving, we parked on a wide verge under the pylons 048882. Walked up lanes to Langton Court farm 044889. Jumping gates we followed the typically blocked Welsh right of way to the final grassy summit lump. Fine views in the spring sunshine but had the feel of a forgotten unloved hill. Strange alien bleeping thing near the top!mindlessflogger11/03/2016
From Cymmer- a pleasant enough walk to top via the trig point.Cas-gwent07/03/2016
Pouring rain and mist again. From track up to Langton Court Farm.jenx19/11/2015
With Jenx as she says. Park at road end of lane, room for a car or two. Mindless flog up the hill in wind and rain. 1/7 today but was on verge of giving up! Trig point and then across the 'moor' to open fell top - no cairn just wet grass. Dull as they get.nordicstar19/11/2015
Parked on bend below Langton Court Farm. Followed track to summitRamblingpaul25/10/2015
Parked at end of private road at ST 043883. A 27 minute walk to the top for a SOTA session on VHF.G4OBK (Phil)14/08/2015
Ample parking on the bend at 044884. A surprisingly easy walk of 55 minutes via Langton court with GB.bolton14/07/2015
Parked by bend in road to SE at 044884 – Up track to Langton Court Farm – Pleasant walk across fields & up to unmarked summit; small cairn has disappeared! (PM)gerrybowes14/07/2015
From Cymmer, ROW east the south and then on to the top.tim74710/07/2015
Part of Rhondda Rollercoaster organised by LDWA.liljonb09/05/2015
From a residential street in Cymmer. Took a long way up to approach summit from E, and a more direct way down. Route and write-up at: http://gayleybird.blogspot.co.uk/2015/03/4-marilyns-west-of-caerphilly.htmlGayle23/03/2015
3/8 Walked in from Tonyrefail along right of way around a horse arena. Over exuberant guard dog made it interesting ! than after climbing up hill over couple of fences to obvious trig point with unusual water collector and solar power device nearbyFergalh14/02/2015
From Cymmer.Lionel Bidwell13/06/2014
Had been a pleasant morning but the day went a bit to pot after visiting here.Alex C21/01/2014
From Cymmer on perfect afternoon.rhalstead11/01/2014