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Name:Carreg Cadno
Hill number:3524
Height:538m / 1765ft
Parent (Ma):2238  Fan Gyhirych
RHB Section:32A: Llandovery to Monmouth
Nuttall/Wainwright area:Brecon Beacons
County/UA:Powys
Catchment:Neath, Tawe, Catchment Boundaries
Class:Dodd (500-599m), Dewey
(Tu,5,Dew)
Grid ref:SN 87426 16137
Summit feature:outcrop
Drop:35m
Col:503m  SN884170  
OS map sheet(s):(1:50k) 160
(1:25k) OL12W
Observations:all other outcrops in this area are 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 90 users, only the latest 50 shown - Show all)ByDate of Ascent
A walk in the Brecon Beacons which took in Carreg Cadno 538m, Fan Gyhirych 726m, Fan Nedd 663m, Yr Allt 605m, Fan Bwlch Chwyth 603m and Fan Fraith 668m. Not a great forecast but clear summits until Yr Allt which were the important ones, and only rain on the last one. Some great views and scenery.meltdiceburg18/10/2023
7 mile run loop from layby next to Craig y Nos with Pauline .. used a mix of Beacons and Cambrian Ways .. lovely limestone areamilejunkie11/08/2023
Carreg Cadno from GR: SN 85589 15479ronaldo33318/06/2023
Carreg Cadno from GR: SN 85589 15479Hippster18/06/2023
Massive car park at Penwyllt Quarry. Grass row to within 250m of top. Interesting limestone pavement en route.Campbell Singer06/01/2023
On DofE dutyJK21/04/2022
22.7 mile 4034ft walk, start at Dan Yr Ogof Show Caves Camp Site, follow Beacons Way to Fan Llia, Fan Dringarth down west to Maen Llia Standing Stone then up to Fan Nedd,south down to Nedd Fechan Farmstead then west along boundry wall and track back to Beacons Way to Carreg Cadno and to Penwyllt Quarry and return Beacons Way to Dan Yr Ogof.stephenbuda21/04/2022
Parked in the Forestry commission car park for Blaen Llia south of Fan Llia for a Sixteen mile Nuttall walk with a couple of Deweys on route. The route visited the summits of Fan Llia, Fan Nedd, Yr Allt, Fan Fraith, Fan Gyhirych and Carreg Cadno taking Seven and half hours.WAYNE ROWLETT05/03/2022
O Chwarel Penwyllt.sionbrit04/01/2022
Completing the Simms of the Brecons: Final walk to reach all of the Simms in the Brecon Beacons. A nice day and a relatively easy walk around some nice rounded summits.JazDisney30/10/2021
Parked on A4067, just S of Bwlch Bryn-rhudd. Track to, and through, forest. Carreg Cadno, then on to Fan Fraith and Fan Gyhirych. Direct descent back to start.PGCE31/03/2021
6/6 Dewey day. Carreg Cadno from the large parking area next to the quarry at SN 855 155. East along the Beacons Way to far end of the fenced off SSI area. Then cross country of limestone outcrops to the summit scramble onto HP. Back the same way. Lovely sunny early evening to complete the day's Dewey round above Glyntawe. (S)silveracorn_alan20/07/2020
At top of minor road west of summit enter quarry area, round back of old railway station, and theres a humungous car park which is shown on my OS map as a disused quarry. Walk from there is easy.ijpowell30/08/2019
From the car park at Penwyllt (SN 85479 15773). Took the track up to the caver's hut, then grassy track north-east to its highest point, diverting off it to scale to the top of the summit limestone pavement. A fine hill. With MP and AW. Onwards to Fan Gyhirych.Man of Kernow127/07/2019
With Meg and Xan. Carreg Cadno, Fan Fraith and Fan Gyhirych from the disused station. Scrambled up the double escarpment onto limestone pavement and across fairly rough stuff to the top of Carreg Cadno. Then down to the quarry road which provided a simple but dull route up to the col separating Fan Fraith and Fan Gyhirych. We had celebratory Welsh cakes and jelly babies on the latter as this was my last Sim and N in south Wales.Herbert Anchovy26/07/2019
Evening walk up from old railway station, along FP. At gate kept to right of fence past sink holes then took one of many sheep tracks to HP on top of rock. Also went to similar height to ESE.PeterD18/07/2019
From Sarn Helen and trig at Blaen Cwm. High point of some little visited rough country. Onwards,down to Craig-y-Nos.richardrosser19/02/2019
With: hb; Quick detour up here while walking the Beacons Way from Ystradfellte to Glyntawe.Ian Baines24/08/2018
With: ib; Helen Baines24/08/2018
Quarry car park at 8563 1556 - Up RoW (Beacons Way) to 8647 1588 - Rather than taking RoW through gateway, followed a decent path along RHS of barbed wire fence to 873163 - From here, a short ascent to summit boulder & an 8ft scramble up SW corner. (S)gerrybowes21/02/2018
From disused railway stn at Penwyllt. Interesting rock formation at top, and on the way up.jonglew21/03/2017
Slight detour off stage 5 of the Beacons Way from Pont ar Daf to Tafarn y Garreg.liljonb24/08/2016
Circular walk from Craig-y-nos Country Park.Dusty05/05/2016
From quarry car park - about 75 mins round trip. The summit is on a rock requiring a tiny bit of scrambling.clivevilla29/12/2015
from quarry cp near cavers club Carreg Cadno, Fan Fraith, fan Gyhirchunderhill19/12/2015
From Penwyllt, straightoforward through Reserve.dicky01/11/2015
3/6 walked up from quarry car park to top. great viewsFergalh19/07/2015
Parked at Pemwyllt quarry. Followed tramway and track to summit of col. Over barbed wire fence to top. Back to track and NW to another old tramway, which parallels the Nant Byfre. Back to quarry using the old railway track bed.MikeM08/07/2015
From Picnic area, a round of Fan Llia, Fan Nedd, Yr Allt, Fan Gyhirych, Fan Fraith and Carreg Cadno.rhalstead04/04/2015
From quarry car park up right of way to barbed wire fence. Then angles up and followed limestone and bog to summit. Cut down to said fence and followed it back before retuning down right of way.SS14/03/2015
Plenty of parking at road end to west. Good track most of the way until the barbed wire fence. Then bits of path and easy to the top. Fine summit.destaylor17/05/2013
Start~ 855156. Good path most of the way to the summit.steve hudson01/09/2012
From roadside parking near quarry entrance (SN 89630 22188) - Fan Bwlch Chwyth - Yr Allt - Fan Fraith - Fan Gyhirych - Carreg Cadno.david23020108/04/2012
With Andrew, Peter, Doug, Kerrie on CUHWC trip; Ystradfellte - Fan Nedd - Yr Allt - Fan Fraith - Fan Gyhirych - Carreg Cadno - Ystradfellte. Great circuit tramping the moors on a sunny though windy dayMark Jackson27/11/2011
2nd day of CUHWC Brecon Beacons trip. Ystradfellte - Fan Nedd - Yr Allt - Fan Fraith - Fan Gyhirych - Carreg Cudno - Ystradfellte. With MJ, PK, DH & KTJ. Weather much better this day, so we appreciated the Brecons for what they are!AGWilliamson27/11/2011
Climbed from PenwylltChris Peart26/02/2009
Galltywenallt28/05/2007
Morning run up from quarry after seeing off Gold D of E group from camp by the dinosaurs.Top originally missed off Dewey's list. Also passed along bridleway below summit in tears of frustration and exhaustion running late on OMM 2013 after being over extending ourselves hunting our high scoring checkpoints among the limestone hollows to the east.Chris Pearson20/04/2006
v fine lst hill. minor rd to NW, old quarry tk to cavers car pk857164, FP thru NNR RHW13/05/2000
Diversion off route back over Cnwer estateRhayader_wander02/05/1992
Adrian26/02/2022
Ianto&Sue20/11/2019
AlanD03/10/2019
emilyball03/09/2019
Xan26/07/2019
M426/07/2019
Lucky15/10/2018
maknipe15/10/2018
outlawcatcher10/10/2018
chalky195318/09/2018