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Name:Clogwyn Llech Lefn [Bwlch y Tri Marchog Top]
Hill number:3684
Height:637m / 2090ft
Section:30B: Snowdonia
Classification:Un
Drop:14m
Col:623m  SH 70755 62697  

Field nameCurrent valueNew value (blank if no change)
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Gridref10    (0 entries)
Feature
Observations
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GPS Data
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Entry no.Date recordedGrid Ref.Feature / Observations / SurveyRecorded byStatusSubpointLatest review
-1653018/10/2007SH 70899 62745  F: most easterly large rock
O: drop measured as 14.0m
S: Leica NA730
JB
Summit
-1653118/10/2007SH 70902 62745  F: most easterly large rock
O: drop measured as 14.0m
S: Leica NA730
JB
Summit



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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 188 users, only the latest 50 shown - Show all)ByDate of Ascent
From parking at Llyn Eigiau Reservoir. Tracks to Cedryn, then faint path and fence line to Bwlch y Tri Marchog and summit. A rarely visited summit judging by the lack of wearmarks. Returned via Craig Ffynnon.PGCE26/01/2024
rickeeling27/07/2023
https://strava.app.link/Ra3Ww3MORAbJohn22/06/2023
rachelcawley07/04/2023
danduponty30/03/2023
Pen Llithrig y Wrach & Clogwyn Llech Lefn with Rufus. Parked in the national park car park behind Joe Brown's in Capel Curig and followed A5 N to ROW leading to south ridge of Pen Llithrig y Wrach. Descending from summit WNW to Bwlch y Tri Marchod and the slight top of Clogwyn Llech Lefn. Followed fence line S from bwlch to pick up original path back to road. Cloud inversion to E & S with lovely views over Tryfan & the high Carneddau. I had PyLW mistakenly logged for 11 years at the time thinking I had done it as part of the southern carneddau circuit, I have finally figured out the logging mistake and ascended this lovely mountain.jacobrichmond21/02/2023
From Cwm Eigiau. Craig Eigiau, Foel Grach, Carnedd Llewellyn, Pen Yr Helgi Du, Clogwyn Llech Lefn and Pen Llithrig Y Wrach.alunrees4005/02/2023
Pen Yr Ole Wen, Carnedd Daffyd, Yr Elen, Carnedd Llewellyn, Pen Yr Helgi Du, Clogwyn Llech Lefn, Pen Llithrig Y WrachBarns15002/06/2022
spallen30/05/2022
Miflij17/11/2021
2/4 (Pen Llithrig Y Wrach/Cloghwyn Llech Lewfn/ Pen yr Helgi Du/Craig Ffynnon)Fergalh25/10/2021
Cwm Eigiau horseshoe, with Jon Collingwood.BobHancock01/09/2021
Nirobi9919/08/2021
ThomasSmith_0722/05/2021
Craig Eigiau, Foel Grach, Carnedd Llewelyn, Pen Yr Helgi Du, Clogwyn Llech Lefn, Pen Yr Llithrig Y Wrach, Craig Ffynon and Moel Eilio. From Cwm Eigiauangelfon3718/10/2020
See Kamoot entry for full details/gpx download: https://www.komoot.com/tour/259026152outlawcatcher15/09/2020
manilena15/09/2020
From Llyn Ogwen, then up the reservoir road to the summit of Pen y Helgi Du and afterwards Pen Llithrig y Wrachderrymark30/11/2019
From Trasbwll parking area with Hiking Manchester: Craig Eigiau, Foel Grach, Carnedd Llewelyn, Yr Elen, back to Carnedd Llwelyn, Pen Yr Helgu Du, Clogwyn Llech Lefn (Bwlch y Tri Marchog Top), Pen Llithrig y Wrach. Thick cloud for most of the day which cleared around 4pm to reveal beautiful views.Lazylizzie06/07/2019
rossdrossd06/05/2019
With Keith. Part of Carnedd Llewelyn loop.Aimless Rambler17/02/2019
treborconde26/11/2018
Dusty27/10/2018
From the campsite at Gwern Gof Isaf on a round of Pen yr Helgi Du, Clogwyn Llech Lefn and Pen Llithrig y Wrach. 8.2 miles in 4 hours.Alan Caine29/09/2018
Waen Bryn-gwenith, Craig Eigiau, Foel Grach, Carnedd Llewelyn, Pen yr Helgi Du, Clogwyn Llech Lefnkeithouk16/09/2018
Dawn Oldham16/09/2018
tomcr8815/09/2018
Craig Eigiau, Foel Grach, Carnedd Llewelyn, Yr Elen, Pen Yr Helgi Du, Pen Llithrig y Wrach circular route, starting at Llyn Eigiau car park.noxibis15/09/2018
BrianMatthews28/08/2018
pwithnall17/06/2018
Cumbriancyclist23/05/2018
park behind joe browns on 3 day back pack of carneddau on to pen helgi duunderhill12/05/2018
TK14/04/2018
IWC26/11/2017
PaulineC26/11/2017
Climbed with Peter Thirkettlepsburgess14/11/2017
Climbed with Paul BurgessP.Thirkettle14/11/2017
Neil Midgley17/07/2017
davechick14/05/2017
From Ogwen Valley. Pen Yr Ole Wen, Carnedd Dafydd, Carnedd Llewelyn, Pen Yr Heigli Du, Colgwyn Lech Llefn and Pen Llithrig Y Wrach. Glorious Day!!Alunrees3308/05/2017
Parked at Llyn Eigiau, climbed Ampitheatre Buttress, then up Pen yr Helgi Du, Pen Llihrig y Gwrach, Craig Ffynnon and back to car. Perfect sunshine made a brill day, with Mart.John Eley07/05/2017
637mThe Grouse05/05/2017
Climbed in passing between Pen yr Helgi Du and Pen Llithrig y Wrach just in case.mart079708/04/2017
tgboosh31/01/2017
dbattyman11/12/2016
Roxytammy05/12/2016
From Caseg Fraith, up Y Braich to Pen yr Helgi Du, descent to Bwlch y Tri Marchog, up to Pen Llithrig y Wrach and down to aqueduct back to Caseg Fraith. Windy day but clear. (With MM, MS, OA, CB)robertgn24/09/2016
With RobN, MaddyM, LivA & CathyB. From Caseg Fraith Hut.masmith24/09/2016
On my own, from Caseg Fraith via Pen Yr Helgi Du. Sunny.alwaysinshorts22/04/2016
With Jenx. Parked carefully at access to water board road gate near Helyg and used bridleway then water leat to gain access to upper cym leading to bealach west of Pen Llithrig y Wrach. Bagged the unclassified top Clogwyn Llech Lefn [Bwlch y Tri Marchog Top]. Oneards to Craigeau Gleison to finish the mornings walking.nordicstar29/12/2015