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Name:Yr Eifl
Hill number:1951
Height:560.7m / 1840ft
RHB Section:30A: Anglesey and the Lleyn Peninsula
County/UA:Gwynedd (CoU)
Catchment:Erch, Catchment Boundaries
Watershed:Cardigan Bay
Class:Marilyn, Hump, Dodd (500-599m), Dewey, Clem,
Trail 100
Grid ref:SH 36495 44747
Summit feature:trig point with metal sign '4 (with small H&A)' screwed on
Col:131m  SH453485  
OS map sheet(s):(1:50k) 123
(1:25k) 253 254
Survey:Leica NA730/Leica GS15/Trimble GeoXH 6000
Comments:Added to Trail 100 list Jan 2020
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, and mention the hill number and hill name.

Logged Descriptions  (logged by 316 users, only the latest 50 shown - Show all)ByDate of Ascent
From junction at 367433, across field to stile S of Caergribin and clear path to next gate. Choice there of going W downhill or stiking across to fence and direct ascent. Faint path reported for a March ascent not found with August undergrowth! Came down good path towards SW car park before crossing to Caergribin - that looks a better route!henryfm24/08/2019
From car park, main path up onto ridge then directly up hill. Good path all the way. Descended the same route. Very pleasant hill.JulieB11/08/2019
From large CP to the SW, using the coastal path. Visited YR Eifl first (summit in hill fog) & then on to the superb N top (summit clear - good views). Popular hills.ger17/07/2019
After Gyrn Ddu- no visibility here either. Direct route to summit through heather and over boulders but found a path to descend on.NormanW12/07/2019
Social run of the Tri Chopa route in reverse. Steep climb up to the summit.Claireb 09/04/2019
Detour from Coastal Path. From Nant Gwrtheyrn car park.ruthatlast25/03/2019
CMC walk (Arwel)greenways01/12/2018
From car park N of Llithfaen, after the North top and from the col. With TJB. Great hilltrimarc210/10/2018
Heavy cloud and driving rainCoxswain06/09/2018
With Calebsimon and co06/05/2018
From Nant Gwrtheyrncar park. Yr Eifl North Top, Yr Eifl and Mynydd Carnguwch. Very cold and windy for the first walk of 2018!!Alunrees3309/01/2018
Revisit with Peterborough MC friends Lies, Melisa and Pawel, on a day when bigger hills rained off, round of the 3 Rivals from car park to SW. Finding the long lost original trig pillar lying half buried in the summit shelter was a nice bonus.RHW17/12/2017
With K from carpark to SW. Very dramatic hill.Ashley27/07/2017
From car park at SH353440 just north of Mount Pleasant with judy55cat.G4OBK (Phil)15/06/2017
Nice hill and great views of iron age hillfort ramparts on adjacent hill. Parked to SW at picnic spot (plenty of spaces) and followed unmarked track up SW ridge to summit, easy return down slope to NW then back via coast path ROW.Cas-gwent02/05/2017
With Trefor. Parked in car park north of Llithfaen. North top (aerial) first then south on path to main summit. On to Tre'r Ceiri after which must be the best example of a hill fort in the country and is well worth a visitmike.hoult07/04/2017
Great views clear day. Whole Llyn peninsula outstretched. very slippery summit in the wet, Worth the climb.Peter_wth04/02/2017
Traverse from B4417-Tre'r Ceiri (outstanding hill fort)-Yr Eifl- Treforbenalder28417/10/2016
Second ascentPeteF25/09/2016
I'm sure this is a lovely hill, but with no views I couldn't verify that! High winds also made it tricky getting any decent snaps of the summit area. Up from car park to SW to Bwlch yr Eifl. N top first, then onto Tre'r Ceiri.jonglew20/08/2016
Evening ascent in mist from high car park at SH353440.Tony J20/08/2016
Fine summit of boulders and heather topped with a huge ancient cairn. Climbed from Trefor via Bwlch yr Eifl track and returned same route early in morning. Climbed with Labrador. Mixed cloud and Sun with extensive views of the whole Lleyn peninsula, Cardigan Bay, Anglesey and Snowdon. Total time 2.5 hours.jamessteel10005/08/2016
Parked in car park in Llithaen (SH 35636 43126). Took B 4417 east for 100m, then lane north past Tynyparc and track onto moor. Lost path in the hill-fog, but eventually located path by wall north to the summit. Walk continued to Tre'r Ceiri. Solo.Man of Kernow111/06/2016
9/11 Lleyn Bagging day Ninth of eleven (Mynydd Anelog/Mynydd Rihw/Mynydd Cilian/Carneddol/Carn Fadryn/Garn Boduan/Carre Glefain/Yr Eifl North Top/Yr Eifl/Tre'r Ceiri/Mynydd Carnguwch)Fergalh21/05/2016
Came up here as a detour on coast walk from Nefyn to Trefor. Climbing up from sea-level at Nant Gwrtheryn, this is a strenuous walk, the path from the east is faint and very steep. Two Bronze Age cairns on the summit, one very impressive the other (to the southwest of the big cairn) quite trashed. Wonderful views. We couldn't find a path northeast from the summit so free-styled a route over the boulders and on towards Tre'r Ceiri.thesweetcheat08/05/2016
Parked east of the village called Llithfaen. Several routes up. Well worth a visit. Weird 4 metal bit out of the trig point. Excellent views and huge iron age fort again clearly seen. Must have been a well fought over area once. Wind surprisingly strong rain becoming heavier. Good final peak. Starting to get into these marilyns. Company: Soloiandesbottes01/01/2016
Porth-y-Nant upper car park at SH353440 – East along a decent path & then NE up Llyn Coastal Path – After passing through kissing gate in wall, headed up through the ramparts to the summit of Tre’r Ceiri, probably Britain’s best preserved Iron Age hill fort – Exited through the western ramparts & then up good path through the heather to the summit trig point. (JL)gerrybowes04/12/2015
Started at Trefor beach car park and took in a bit of coastal path before heading up to the bwlch then up the lower hill and mast before coming up here to this fine top and trig point.Father Ted10/10/2015
With Minnie from parking/picnic area, Up easy/obvious path then through rock fields, steep in places, ??number 4 on trig, some cloud but warm & getting warmer through day. great views of peninsular & impressive Tre'r Ceiri - fort.apricorum16/09/2015
With Hobbs family on birthday: car park at SH353440 - Bwlch yr Eifl - Yr Eifl N Top - Yr Eifl - Tre'r Ceiri - past Caergribin and back. Great walk and sea views. Good path from Bwlch yr Eifl.Mark Jackson26/08/2015
On an evening walk from the summit of the B4417 roadalistairpooler24/08/2015
There and back summit from the west side. Great views across the Snowdonia range and the Llyn.roadbiker3207/08/2015
564mThe Grouse18/07/2015
Took a large group up from car park above Nant G, including 2 who'd never been up a hill before! Fears of height and cramp meant walk cut short after summit - will need to come back for Tre'r Ceiri!huwthomas15/07/2015
From ig car park to SW. Overcast, some sun, warm calm and good views.iangalbraith08/07/2015
from Mt Pleasant to SW. 1,100th MarilynThearlaichdubh20/06/2015
Start ~ 366433. Climbed up to Caergribin and found a faint path that led directly to the summit. Fantastic views in all directions. Descended to the West and took in the hillfort on Tre'r Ceiri, well worth a visit. With Wombourne.steve hudson03/03/2015
Parked at GR 366433, room for one car. Climbed very steep grass slope to Caergribin then a faint path leads to the summit marked by a trig point. Excellent view point but difficult to take photos because of the extreme wind. Descended via the hill fort on Tre'r Ceiri, well worth a visit. With SH.wombourne03/03/2015
From the car park at Mount Pleasant - east on a good path and then north west to the summit. Great views. Solo.bolton09/08/2014
We'd hoped for a view but all we got was cloud, climbed from the hill fort.bardolph20/04/2014
From car park above Llithfaen, following good path all way around and up south of hill. Views dissappointingly hazy in excellent conditions.SS19/04/2014
on joint survey with MountainViews Galltywenallt01/09/2013
From B4417, via hill fort, Yr Eifl, Yr Eifl north top, return via track to Llithfaen. With Imperial College Fellwanderers.Edgemaster18/08/2013
Parked up in forest car park on road from Lithfaen. Took route up to Caergribin outcrop, below Tre'r Ceiri,..& on to top of hillfort. Great view of all Snowdonia range up there,..& views right down the Lleyn. From Tre'r Ceiri took path due west straight up Yr Eifl to trig. pt....& then on down S.W.path back to car park...Around 4 miles in all.beedeedee03/06/2013
Up here to log the trig this time.Twice Shy16/04/2013
Approached from the south. Excellent views and don't miss Tre'r Ceiri which is Britain's best iron age fort.mindlessflogger06/04/2013
From B4417 minor road junction to southtim74709/03/2013
Parked to S and tried to follow paths but they kept petering out. Quite a bit of clambering over rocks in the latter part of the ascent and the top was covered in mist so my compass came in handy on the descent.clivevilla15/02/2013