Name:Garreg-hir
Hill number:2171
Height:484.9m / 1591ft
SMC/RHB Section:31A: Aberystwyth to Welshpool
County/UA:Powys
Topographical area:WM01 Carneddwen-golfa
Catchment:Severn
Class:Marilyn, Hump, Tump (400-499m), Clem
(Ma,Hu,Tu,4,Cm)
Grid ref:SN 99871 97920
Summit feature:no feature on NE escarpment 140m N of trig point
Drop:150.7m
Col:334.2m  SH 92471 03180  
OS map sheet(s):(1:50k) 136
(1:25k) 215E
Observations:summit is 10cm higher than ground at SN 99899 97784 12m SSE of trig point
Survey:Leica NA730/Leica 530
Survey of Garreg-hir (Final Rev1).pdf
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 200 users, only the latest 50 shown - Show all)ByDate of Ascent
Parked opposite the ROW gate to the SE and followed the track between the two llyns and round to the E of the ridge to the gate into the access land. Here went up the fence line to the ridge and along to the trig and hp. Returned along the ridge with a stile out of the access land and an obviously well used path SSE down the ridge to pick up the track back past the llyns. Good views from the top, if breezy. Solo. Worth perhaps noting that on the Montgomeryshire Wildlife Trust site it says the Llyn Mawr nature reserve was closed to the public on 20 Oct 2023 due to continual anti social behaviour, which caused permissive path access to be withdrawn by the landowner.richard6905/06/2024
Yet another place where all trace of public FPs has been removed. Walked up lane from Maes-y-pandy, because FP gone, to Parc-y-Rhiw. No sign of FP there either, but found alternative way up to ridge. Probably better to go in from E, but I wanted to climb a decent height.IanHHill24/05/2024
There isnít a CP at the nature reserve, just narrow verge parking, SO011969, and difficult turning at the road end. Initial RoW, NW, between the llyns, was a mudfestIsbjorn05/02/2024
Parked at start of track, followed right of way then veered up to a higher, better track along the ridge.iangalbraith15/08/2023
Usual ascent from roadside parking. Car still at summit. Mast is broken. A very different summit feature.KevPalmer13/06/2023
Parked on verge near nature reserve, up on FP to trig and then on to top with Land Rover and solar panel nearby. Great views on a clear day. my 600th Marilyn. Back down and on to Mynydd CerrigllwydionPeterD03/04/2023
Solo from verge near Llyn Mawr. After a heavy shower stopped I made a quick ascent but apparent no further rain imminent so leisurely exploration of summit crags. Landrover with solar panel and aerial still in situ near to summit.Nick Canute23/08/2022
Gmac parked van near the right of way. One and a half kilometre easy climb to the summit. Interesting rock formation on was up. Almost like a cart track marked on either side.elizyanne05/07/2022
Parking to the east on the road by Newhouse. Bridleway and field track to stile on ridge to Access Land. Beautiful ridge! High point north of trig by car! Solo.Dangerous Dave27/05/2022
As Peterb car with IT mast still there. Easy walking 2.6 miles round trip, 1hr, hardly any climbing but a really nice ridge.JulieB25/05/2022
I parked just off the road at 012 972 where there is room for 3 cars and then followed the farm trackand path to the knobbly summit. Fine far reaching views though I was surprised to see a vehicle with IT mast by the summit.Peterb23/10/2021
parked on verge near llyn mawr track and ridge nice hill good views with donnaunderhill10/06/2021
With Mrs T, and D. Parked on verge by nature reserve, picnic overlooking Llyn Mawr, then up. Sunny day with good views in all directions; Cadair Idris particularly striking to NW.huwthomas17/04/2021
Bike ride and short walks from Caersws: Bryn Amlwg, Garreg-hir, Mynydd Cerrigllwydion, Ddifed.Mark Jackson17/10/2020
I enjoyed this hill apart from the horribly muddy start , the track having had monsoon conditions and much farm traffic. Visited the trig on the way to the high point. It was wet .NormanW13/03/2020
From SE near Newhouse, bisecting the 2 Llynís via farm track then path to trig and summit just beyond.N.Morters17/01/2020
Verge P to SE. Ascent passing between the llyns.ger19/11/2019
From the SE. Nice shapely hill but had to hurry down, now in my car under a heavy shower.Topographer5709/09/2019
From Llyn Mawr nature reserve car park.Winterfloodian09/07/2019
With Josh and Cabe.simon and co20/04/2019
Fine spell of very early spring weather so I just had to take a day off and head up into the hills. Lovely area too to find some much needed peace and quiet.Alex C26/02/2019
2/6 Marilyn day. Ascent of Garreg-hir from the nature reserve. Over pasture and moorland. Threatening drizzle. 4.4km in 1 hour. (S)silveracorn_alan13/08/2018
Parked 012968 on side of road opposite gate to start walk up between lakes. Followed path to gate, mistakingly ended up on wrong side of fence but corrected on the way back down. Super windy at the top! Awesome views.Hippy7728/07/2018
Like others, from the Llyn Fawr NR car park. I took the bridleway to the N of the lake, over the fence at the start of the access land, then HP and trig. Almost trod on a fox- well startled- asleep or just sheltering in the sedges from the cold wind. Then back down the ridge and S of lake. Good access/ ROWs and an enjoyable hill.pwheeler05/02/2018
A nice walk by the usual route between the two lakes, the view sadly spoiled by a lump of grit in my eye.Gill02/11/2017
Walked up from Bronffynnon on the roads to the path between the two lakes. From their easy stroll up to the summit.garyhoney28/08/2017
What a lovely little hill. Little - only because there is not much uphill walking to do if you drive up to the nature reserve by the lakes, just a mile across a gorgeous green ridge with some rocky outcrop and gates and stiles, no BWF. Bagged the trig first before continuing up to the high point beyond.Father Ted20/08/2017
With W, swift ascent with rain looming via track/bridleway from public road to SE.steve_a03/06/2017
6/7 Sixth of seven on wet cold misty day ((Newyd Fynyddog/Twmpath Melyn/Bryn Amlwg/Mynydd Pistyll-du/Yr Allt/Garreg-Hir/Yr Allt)Fergalh14/01/2017
From Creigfryn Chapel via Allt FawrTony J10/12/2016
With Trefor. Parked in very small nature reserve car park.Track between lakes and ridge to summit. Showers but clear views.mike.hoult13/07/2016
#590 - ROW to access land on the way up, took the ridge line on the way down, stile and gates where required.tim74709/06/2016
Parked near start of track between two lakes- a very pleasant wander up the hill on a warm sunny day.Cas-gwent22/05/2016
from roadside between the 2 lochans to SE. Nice little ridge to fine hill.Thearlaichdubh13/09/2015
From lakes car park at 012968 were a sheep dog was guarding his sheep in the pen. He hadn't moved an inch when we returned from the fine hill top.mindlessflogger19/06/2015
With Jenx, 3/5 today on a great crisp clear day. Usual parking spot between the lakes. Room for several cars on verge. Easy walking, great views with exception of the increasing number of wind turbines in the area. Nice rocky outcrops on the ridge, visible from miles around - as we later saw.nordicstar13/12/2014
Lovely walk from SO 012968, passing Llyn Mawr. Activated for SOTA on VHF.G4OBK (Phil)11/08/2014
Parked close to Llyn Mawr and an easy walk to the summit with GB.bolton06/08/2014
Roadside parking to SE at SO01209 96803 Ė Along track before heading up on to SSE ridge Ė Along ridge to summit. (PM)gerrybowes06/08/2014
KeithByTheC23/05/2014
Well named long ridge of rock prominent for miles around. Climbed from the road near Llyn Mawrjim pererin18/04/2014
Beautiful hill, remote and i chose a lovely day on which to do it.thenomad22/05/2013
SN9987397918Anton21/05/2013
Solo192107/09/2012
Roadside parking at SO01209 96803. Ascent via ROW until access land, and direct to summit.Sprog23/08/2012
WITH GEOFF AND MATT PORTERM0YDH02/01/2012
nice top - circular walk from the bwlchgigglejon04/08/2010
The nearest hill on any list near my caravan. We decided not to do the easy route up between the lakes and instead walked cross country. The paths were practical non-existant in places and newly built fence lines meant that i had some compass practice.Cap_Thunderbolt01/08/2010
Took the tour of nature reserve first before climbing this good hill in warm hazy sunshine.Dugswell224/04/2010
1.15 miles from the road each way. Lovely walk.clivevilla20/11/2009