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Name:Mynydd Sylen
Hill number:2283
Height:284m / 932ft
RHB Section:32B: Carmarthen to Vale of Neath
County/UA:Carmarthenshire [Sir Gaerfyrddin] (CoU)
Catchment:Loughor
Class:Marilyn, Hump, Tump (200-299m), Clem
(Ma,Hu,Tu,2,Cm)
Grid ref:SN 51535 08014
Summit feature:trig point
Drop:209m
Col:75m  SN620178  
OS map sheet(s):(1:50k) 159
(1:25k) 178
Observations:ground in arc of radius 25m from W through N to E is about the same height; higher ground 20m SW probably related to collapsed old wall
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 156 users, only the latest 50 shown - Show all)ByDate of Ascent
short walk from southunderhill17/08/2019
From SN 516078Isbjorn14/11/2018
Easy walk up from road to trig pillar.Topographer5729/09/2018
A tedious and inconsequential hill. Walked up the bramble and bog infested field to the trig then hopped over the barbed wire and walked down the mast track (much better/drier). Drove off.Gill12/01/2018
Darkness trigged summit must north of masts up tracks from the SE.vegibagger03/01/2018
OtisGlenford29/12/2017
Short walk from lane with good parking in field entrance.Ramblingpaul18/08/2017
It was too hot to make a longer route out of this one, so bagged it from the road 100 yards from the trig point. We walked up the road to the masts, but realised the trig point was on the other side of the fence, so I climbed over the BWF and then descended via an overgrown field. With Keith and Ross (although they didn't bother with the trig).islamidget18/06/2017
Parked 5156078. Enjoyed short walk to trig point.Hippy7715/02/2017
Started my walk from Horeb to SW. Then ascended via the roads until the final 200m.garyhoney27/08/2016
Marilyn 5 of 5 bagged after a successful 2 lighthouse + other Siblet trip. Nice warm sunshine. Bagged with Sarah.assynt_bob14/05/2016
Easy walk from roadasbown01/05/2016
From minor road to SE. Hopped right hand gate and walked the short distance to the trig. Miserable weather.geralddavison01/05/2016
Last of 3 Ma and 2 Hu today, starting with Garn Fawr by the Pembrokeshire coast. Much better than expectations- fabulous views over the Gower and to Lundy. Better view of Brecon Beacons than from Mynydd Llangyndeyrn. So I spent 20 mins here, walking down the field next to the 2 wind turbines for better coastal views. From road to W, reasonable space to park. Unfortunately some fly tipping here.pwheeler29/04/2016
Parked at gate. Notice declaring war on wind turbines. Fly tipped childrens toys..why? Simple vault over locked gate and trot up to masts and trig in adjacent field. Horrid weather no views.stig_nest14/11/2015
A short 10 minute walk with GB.bolton28/07/2015
Parked by end of track at SN51638 07877 A short walk up track & through wire fence to trig point. (PM)gerrybowes28/07/2015
3rd of 5 today. Parked at end of access track and short walk along track, over wire fence to trig point. On my own.mike.hoult18/05/2015
Trig just inside field.rhalstead05/04/2015
From minor road to SE. Did not linger on top due to drizzly conditions.bowlesy03/04/2015
5/9 Drive to short track leading up to Transmitter towers. Trig Pillar is in next fieldFergalh29/01/2015
Parked at end of straight tarmac track which we walked up to the trig point near the TV relay station. Operated ham radio for SOTA when we got there.G4OBK (Phil)22/01/2015
Walked up from Pontyberem on minor roads to farm buildings near top. Farm track to radio station before hopping over barbed wire fence to trigButeobuteo17/01/2015
Short walk up from minor road to SE. Trig pillar, approx 50m NE of comms compound, is probably highest point. Good all round views.jonglew23/06/2014
KJFcrazy01/06/2013
Very close to the road. Great views of the Gower and inland.huwthomas04/05/2013
very easy topgigglejon18/12/2012
The hill, a trig and a geocache in one hit.Mamaherb09/11/2012
Walked from five roads, the trig is in a field next to the mast, standing on the man made bank between the fields is a view to mynydd Llangyndeyrn.Had a good walk around the summit field not a bad hill all in all.hodder05/09/2012
Windy, mild, fine drizzle, misty, no views.iangalbraith09/10/2011
A quick walk up from the entrace to the track where there is plenty of room to park a car without blocking the entrance.Father Ted22/07/2011
Crikey, hardly worth a comment. Up the lane for a minute.Eddie25/02/2011
Time approx. 250m walk from road along track to radio station then over fence to trig pt. Good weather. dbb27/03/2010
With: hb sb; Parked on minor road and walked up the track to the aerials and the trigpoint.Ian Baines24/07/2009
Short walk up track from SE to trig, overlooked by mast. Grotty spot with loads of litter.Aye Jimmy03/05/2009
Easy stroll with good views.Dugswell220/09/2008
10 minute pleasant stroll. Good views.destaylor08/09/2008
Parking close to top.Dusty10/10/2007
Day trip to South Wales.marktrengove19/05/2007
With Tim747CreakingHiker05/05/2007
Trig revisit, quickie from SERHW01/10/2006
Drove almost to top. V easy.robphys04/08/2006
Grey trig point BM S1996. Not a bad view for a little 'un; could see the tip of the Gower and Worms Head.signyred18/07/2006
sunny evening. The Worm's Head visible in the distance.Adrian14/04/2006
Drove to where the transmitter lane leaves the road and walked a couple of hundred yards up to the transmitter and trig.nddavies11/12/2005
petey17/05/2003
Galltywenallt07/09/2002
One of 5 Marilyns in a day This was a simple park at the roadside and walk to the mast and the top.ChinnockC12/04/2002
7 marilyn day with Darren.All short outings from car.Chris Pearson23/04/2000
Next to 4 masts on flattish top.arranc21/02/1999