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Name:Foel Isaf
Hill number:7576
Height:548m / 1798ft
Parent (Ma):2161  Pumlumon Fawr [Plynlimon]
RHB Section:31A: Aberystwyth to Welshpool
Nuttall/Wainwright area:Central Wales - Pumlumon
County/UA:Powys
Catchment:Rheidol
Class:Subdodd
(s5)
Grid ref:SN 80992 91636
Summit feature:cairn
Drop:27m
Col:521m  SN808918  
OS map sheet(s):(1:50k) 135 136
(1:25k) 214W 215W
Survey:obvious summit
GPS data:show GPS entries for this hill

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Photos
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(where available)
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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 32 users)ByDate of Ascent
Parked at the Glaslyn access gate then along track to Bugeilyn. Continued along track across Tarren Bwlch-gwyn to Clipyn Du. By far the easiest part of the walk as it was then wet and rough terrain to capture the four tops of Carn Hyddgen, Foel Uchaf, Foel Isaf and Llechwedd Crin. Sloshed up Banc Bugeilyn for good measure before retreating to the van for succour, tea and biccies.summitter30/08/2023
5/11 I roughly followed GB's route from the cattle grid at 837952 bagging 7 Deweys and small detours to get 4 nearby minor peaks. Visited Clipyn Du, Mawnog, Carn Hyddgen, Foel Uchaf, Foel Isaf, Llechwedd Crin, Banc Bugeilyn, Esgair Greolen, Bryn yr Wyn, Foel Fadian, and finishing with Bryn y Fedwen. Some tough pathless sections, but also some quick bits with cart and quad bike tracks. Splendid views! A total distance of 27.5km with 980m ascent in 8.5 hours.silveracorn_alan09/04/2022
After Llechwedd Crin, stiff going at first from Crin, the distance between them seemingly further than the 700m shown on the map. Weather was getting poorer with rain approaching from the SW, so we aborted our plans to head to the source of the river Severn & took the track all the way back to the car. We got soaked. Our 100th new hill of 2021.DanMaisieBex22/12/2021
Diversion off route between Esgair Greolen and Foel Uchaf.PGCE13/08/2021
easy park 837952 tracks then over top of Graig Fach back to track near dam then Clipyn du from highest point of track return to track and ATV where can to Ochr LLygnant acros moor some faint paths to Carn Hyddgen walk then as stright as can to Foel uchaf, Foel Isaf Llecwedd Crin then back to track and Bugeilyn farm. Then to Bugeilyn numerous ring contours and flat top point 551 on os map appears high point down SE to esgir grolen and Bryn y wyn return east of Banc bugeilyn using drainage ditch on 470m contour easy walking live badger sett 8334 9290 then across old mine working to track on to Foel Fadian easy tracks and then lastly Bryn Fedwen about 600 metres from car, 8 hrs total best top of day Carn Hyddgen with cairns and iviews of Pumlumon and numerous Marilynsunderhill17/03/2021
petey30/09/2017
Easy parking by track SW of Bryn y Fedwen. Bryn y Fedwen, Foel Fadian, Banc Bugeilyn, Cribyn Du, Carn Hyddgen, Foel Uchaf, Foel Isaf, Llechwedd Crin.ijpowell07/07/2017
4/5 (Banc Llechwedd-mawr/Car Htddgen (Carn Gwilym)/Foel Uchaf/Foel Isaf/Llechwedd Crin)Fergalh07/05/2017
From the cattle grid 837952. I did a round of Lllechwedd Crin, Foel Isaf, Foel Uchaf, Carn Hyddgen, Clipyn Du and Mawnog. Over five hours but the pathless bits were not too bad underfoot.clivevilla17/08/2016
Alone, form Maesnant.Rob Pen y Garn17/04/2016
From Llechwedd Crin. Small cairn in grass. No paths. On 2 night solo backpack.mick04/09/2014
With Clare. Sunny but very chilly. 3rd top of our not quite complete cicuit.alwaysinshorts19/04/2014
GMC walk from Glaslynmike.hoult20/10/2013
Bagged by accident on way to Foel Uchaf and hence didn't take summit photo. Chance for someone else, then. Has obvious cairn.Martin R30/12/2012
thenomad23/11/2022
Rob5005/08/2022
AlanD30/03/2019
TK23/02/2018
mae17/08/2015
Steve Q02/08/2015
DARRENG29/11/2014
andrew brown29/11/2014
Kendall06/09/2014
MM15/04/2014
KM15/04/2014
salen20/10/2013
Anton04/09/2013
stevent080925/08/2013
kanderson05/03/2013
roddyp24/09/2011
andrew.allum01/01/2000
Ianto&Sue02/11/1977