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Name:Penrhiw-wen
Hill number:3510
Height:510.1m / 1674ft
Parent (Ma):2205  Pen y Garn
RHB Section:31C: South-West Wales
County/UA:Powys
Catchment:Wye
Class:Dodd (500-599m), Dewey
(Tu,5,Dew)
Grid ref:SN 92514 70923
Summit feature:no feature
Drop:34.1m
Col:476m  SN 9186 6958  
OS map sheet(s):(1:50k) 136 147
(1:25k) 200W
Observations:ground 100m SE at SN 92570 70843 is 0.3m lower
Survey:Abney level/Trimble GeoXH 6000
Comments:col height measurement is 476.0m
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
From pull off on road to SW.PeterD19/07/2023
From the road summit. Easy hill and then onto Moelfryn,Campbell Singer13/01/2022
G, MyIdris28/09/2021
From the nearby road, up to grab a geocache and a short walk from there onto this Dewey. Great afternoon to be out walking.Father Ted14/09/2021
Quick up and down from the highpoint of the road.PGCE20/07/2021
Penrhiw - wen from GR: SN 92108 70815ronaldo33307/05/2021
From campsite in Rhayader up lane to track after waterfalls which leads near to Esgair Penygarreg summit visited both trigs. Returned to lane and walked north west then set off across country to Penrhiw-wen. Returned to Rhayader on track over Esgair Dderw.dgresty18/10/2020
Parked at the summit of the mountain road, then a short walk to the HP. (S)silveracorn_alan03/08/2020
short walk from high pointunderhill01/08/2020
From Pont ar Elan car park. Circuit of 5 DeweysSlash323/08/2019
Short walk, visiting summit and slightly lower nearby topRobertP28/07/2019
First of three Dewey's from Penygarreg reservoir's free car park that also has toilets if a little grim. Fourteen mile in just over five hours route went onto moelfryn and Esgair Penygarreg clear paths through out.WAYNE ROWLETT01/09/2018
Parked at the high point of the road to the east, then a short walk to the summit. With JT.Sprog30/05/2018
Easy parking at 920708 - An 8 minute walk up ATV & damaging off-roader tracks to the unmarked summit. (PM)gerrybowes30/01/2018
15 minute return from parking at 921708 with GB. Cold, clear and very still.bolton30/01/2018
Short walk from road highpoint.rhalstead23/12/2017
17 miles, 3022ft Bryan Titli Wind Farm walk.stephenbuda10/10/2017
Ample parking at high point of B road west of Penrhiw-wen. Penrhiw-wen, Moelfryn (highest point by my satnav is east of OS spot height with a few flat stones on top) Esgair Perfedd. Interesting old settlement at Lluest-pen-rhiw en-route to Moelfryn.ijpowell08/07/2017
Continuation of walk from Moelfryn. Descended SW to rejoin the bridleway, then headed nearly up to the mountain road, diverting just before road SE on an ATV track, and so to the summit - now heavily eroded. Walk continued to Esgair Dderw. Solo.Man of Kernow112/03/2017
A little round (ACW) of Moelfryn, Penrhiw-wen and Esgair Dderw from SN 94477 70755.summitsup08/05/2016
Seventh of nine on sunny day (Drum Ddu/Y Gamriw/Y Foel/Esgair Penygarreg/Esgair Perfedd/Esgair Dderw/Penrihw-Wen/Lethyr Melyn/Gornoeth)Fergalh16/04/2016
On a small round of hills. Parking on mountain road, by waterfall. Nondescript grassy mound in otherwise flatish plateau area.jonglew28/06/2015
Stroll from roadside to Penrhiw-wen then drop down and cross Nant y Sarn and angle over easy ground to west flank of Moelfryn. Back by similar line but took ROW back to road to avoid tussocks.SS25/04/2015
Part of a circle from Pont ar Elan. Started with Esgair y Llwy, then Pen Lan-fawr, Cerrig Llwydion, Moelfryn, Penrhiw-wen. Mostly done on path (some indistinct) and sheep trods. A fair bit of hummock grass but never ankle breaking stuff. Basically a good, solid walk. Good views all along the walk but pity about the wind farms.MikeM09/04/2015
Short pop off the road on the way throughNeolith01/03/2015
This was a very easy walk from the road about 15 minutes there and back. The summit was unmarked with some old and wet snow patches.isabelle15/02/2015
Start ~ 920708. Easy 8 minute stroll to summit. With Wombourne.steve hudson11/02/2015
Parked at GR 920708, room for several cars at high point of road. Took exactly 8 minutes to walk across snow covered grass to summit. With SH.wombourne11/02/2015
From Elan Valley Mountain Road (SN 93262 69802) - Esgair Dderw - Penrhiw-wen - Esgair Perfedd - Esgair Penygarreg.david23020129/12/2014
As part of a circular walk of Esgair y Llwyn, Pen Lan-fawr, Cerrig Llwydion, Sychnentydd, Moelfryn, Penrhiw-wen, Esgair Dderw, Esgair Penygarreg and Esgair Perfedd. No difficulties in parking, access or navigation.JohnStoneham07/09/2014
Parked easily on road.destaylor10/07/2014
With Val. Checking out route for GMC walkmike.hoult16/04/2014
Quick grab time.Martin R07/02/2014
As per others, 5 mins each way from layby on road to wsw, over shortish tundra.dicky31/08/2013
Quick bag off the Aberystwyth mountain road. Rubbish top so not worth much more effort.simon and co21/06/2013
petey31/03/2013
Nipped up from road in five minutes. Featureless summit.chriswatson18/11/2012
Part of a 3 day solo walk around the elan valley ticking of some dewey topssteviet05/05/2012
Start ~ 920708. Easy stroll to summit. With Ron.steve hudson12/10/2011
Easy walk up from the highest point of the road.clivevilla03/06/2009
Very quick walk from the road out and back 0.6ml.Rob Pen y Garn13/08/2008
Another rounded hill with three candidates for the highest point. Above GR is within 20m of all three. snow covered today. Easy bag off the mountain road but better with Moelfryn and Sych.. from the Marteg then walk down the ridge to RhayaderRhayader_wander11/02/2007
Rhayader Dewey bagging, walk 7/8; from road to W @ 921708 RHW28/02/1998
kanderson25/11/2023
davefh02/07/2023
TREBORK20/05/2023
beckybags06/02/2023
A Peckish06/02/2023
IainT28/08/2022
Dusty18/11/2021