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Name:Holyhead Mountain [Mynydd Twr]
Hill number:1959
Height:220m / 722ft
RHB Section:30A: Anglesey and the Lleyn Peninsula
County/UA:Anglesey [Sir Fon]
County (CoH):Anglesey [Sir Fon] (CoH)
Island:Holy Island (Anglesey)
Class:Marilyn, Hump, Tump (200-299m), Historic County Top, Current County/UA Top,
SIB, Clem
(Ma,Hu,Tu,2,CoH,CoU,SIB,Cm)
Grid ref:SH 21859 82948
Summit feature:trig point on circular plinth
Drop:220m
Col:Sea
OS map sheet(s):(1:50k) 114
(1:25k) 262
Observations:rock by plinth is highest visible point but higher ground may be hidden under plinth
Survey:obvious summit
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill
Notes:
  • Anglesey [Sir Fon] historic county top
  • Anglesey [Sir Fon] current county/UA top

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Photos
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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 621 users, only the latest 50 shown - Show all)ByDate of Ascent
Kendall28/03/2024
From South Stack. Yellow lines force you to use the P&D CPs. The P&D machines are liable to switch on whilst you are away from your vehicle. Nearest problem free, free, parking is at SH217813Isbjorn30/01/2024
Ianto&Sue12/10/2023
Clach Liath10/10/2023
Up from car park to east with Twiggy. In cloud. Had trouble finding way down. In hindsight, our intended direction wasn't too clever.desperate dan07/10/2023
After bagging Yr Arwydd, I parked at SH 2213 8213. Easy route finding straight up, but problematic finding a route down the lower section through the hawthorn bushes and bramble. Avoid the Quarry area, head for the Reservoir on the descent.chillyman820/09/2023
A quick diversion off the coastal path to the trig point at the top.PhilipChaston08/09/2023
Climbed Holyhead Mountain for the second time, this time with my Nephew. Made our way up from the Breakwater Country Park carpark. Spent half an hour or so at the summit watching the ferries dock in the harbour below.cactus_chris16/08/2023
https://strava.app.link/l9cjFfA6CGbJohn09/08/2023
Smelly socks25/07/2023
Parked at small car park on right from entry road to south stack, before you turn right across the bridge. Through barrier to right and up through small path through heather and gorse. Steepish and craggy but not not too challenging. Great views and a bench at the top. Back down same way but visited the quarry on the way back down.Tribal2er24/07/2023
Nice steady work, you have to pay a small fee to park.Brian Chambers22/07/2023
Brian_Chambers22/07/2023
David8429/06/2023
atreides788719/06/2023
dave g12/06/2023
fionnag12/06/2023
Parked in the RSPB The Range car park. Pleasant circuit around Coastal Path and up to summit, then off North East path and then down to North Stack then paths back to cafe for an ice cream and along road to car. 8.6 mile leisurely circuit.JulieB07/06/2023
J_Mo04/06/2023
ThomasSmith_0728/05/2023
Ran from Holyhead to South Stack - lighthouse not open - then along the coastal path and up to the trig at the summit for a repeat visit, 15 years later.madaddo07/05/2023
On the coastal path from Trearddur BayLancylass04/05/2023
apmbwood31/03/2023
The Parkers11/03/2023
Cheshire Claret24/02/2023
After parking at the RSPB carpark at South Stack we used some of the myriad of footpaths up to the summit. A wonderful small hill with fabulous views.Peterb05/02/2023
with YFabioski26/01/2023
Velocette26/01/2023
willc999901/01/2023
rickeeling27/12/2022
Matt17/12/2022
Holyhead Mountain from South Stack.alunrees4017/12/2022
Manuel Pereda09/11/2022
TGRS03/10/2022
With Yeltzbagger. Overcast and windy walked down steps to South Stack but lighthouse closed.Stevie n Tay21/09/2022
Yeltzbagger21/09/2022
ketzster20/09/2022
Circle from South Stack carpark.catie12/09/2022
Detour from running the coast path with Pauline … what a lovely baby mountain .. rocky and heather in flower reminded us of the Rhinogsmilejunkie05/09/2022
Cycled across Yns Mon from Bangor checked into a rather grotty hotel (avoid the Boatshed!) then cycled up to the base of the walk at Pentre Palla. Good path up in the late afternoon sunshine but somehow managed to find myself stuck in a field of bracken and ended up with scratched shins! Hardly a soul about.pclyndes01/09/2022
From South Stacksturuss29/08/2022
From S. Stack with the kids. Great views.SlowOl03/08/2022
Here for beer with the sunset, after a good day on the hills, great sea views.Stevooo17/07/2022
From country park car park. Great views. Lots of rock climbers about.twg2725/06/2022
JackMoss9825/06/2022
Mark65Evans07/06/2022
AlanD19/05/2022
rainonthewindows17/05/2022
Hetty14/05/2022
From South Stack car park. Foggy at car park, but clear on top.vuirich03/05/2022