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Name:Casteal na h-Iolaire
Hill number:4544
Height:715.2m / 2346ft
Parent (Ma):1476  Beinn Bharrain - Mullach Buidhe
RHB Section:20C: Arran and Holy Island
County/UA:North Ayrshire
Island:Arran
Class:Simm, Graham Top
(Tu,Sim,GT)
Grid ref:NR 89732 42256
Summit feature:rock tor
Drop:63.1m
Col:652.1m  NR 8983 4238  
OS map sheet(s):(1:50k) 62 69
(1:25k) 361N
Observations:rock by cairn 120m WSW at NR 89613 42216 is 0.08m lower
Survey:Leica RX1250
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(*).
*For information about access rights in Scotland see the ScotWays website.
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 163 users)ByDate of Ascent
From Pirnmill, using the footpath up through the birchwood by the Allt Gobhlach to the hydro station, then up the NW ridge of Casteal na h-Iolare to the summit. Then steep easy descent NNE to the bealach and up to the summit of Mullach Buidhe. On return, down to the bealach and descended via Coire Roinn back to the hydro station. Then track down to Alltgobhlach and north along the road into Pirnmill. With RP. 11.8km, with 800m of ascent.Man of Kernow104/09/2023
From Pirnmill PO.Horsevshoe of four tops from Casteal na h-Iolaire to Meall Donn.Longwojo24/08/2023
from Pirnmill, as per SMC Guide. On to Mullach Buidhe and returned same way except missing out this top and the old Beinn Bharrain top, then using new track from water feature and going by Alltgobhlach farm.IanHHill15/08/2022
Parked opposite the Lighthouse restaurant in Pirnmill. A good path through the woods on the north side of the Allt Gobhlach and then to the weir before the ridge to the summit with Dangerous Dave. Headed to Mullach Buidhe.bolton19/06/2022
Parked in Pirnmill, opposite The Lighthouse Restaurant. Good path up to the weir on Allt Gobhlach, then rough trackless moorland until halfway up the ridge. With bolton.Dangerous Dave19/06/2022
From Thunderguy to Coire Fhionn Lochan, then Meall Bhig, Meall nan Damh, Meall Donn, Beinn Bhreac, Mullach Buidhe and Casteal na h-Iolaire. Descent via Allt Gobhlach to Pirnmill. A lovely day.vuirich28/05/2022
With CathyS and Luna. Linear walk from Catacol to Pirnmill via Beinn Bhreac and Mullach Buidhe. Started in Catacol (NR 9098 4890) after catching the 324 bus a short way from Pirnmill. Claggy start but cleared up around 1pm for views from Meall Donn and Beinn Bhreac; of the eastern Arran hills and Jura to the north-west.masmith28/12/2021
HardenC26/09/2020
Bivvied on the summit. Unreal sunset, as there was a long medium-height cloud between myself and the sun - which was illuminated red.RichardMurchie10/06/2019
SOLOVin04/05/2019
CDMC Arran meetclashcityrocker08/09/2018
casteal na h lolaire and ceann reamhar from pirmill on a wet and windy day.robertphillips15/07/2018
Up from Pirnmill. Then on to the Graham & the other Sim. Day after Gill & Jez's last Corbett.ngthack19/11/2017
Parked at Catacol bay just north of bridge and walked 3.5km on the track south on east of river before cruising to head up Meall nan Damh then south over tump simm,Hump Marilyn and simm. This one sixthvegibagger17/11/2017
Dougarie to Catacol.Smudge11/02/2017
JimT08/02/2017
4th hill of 9 today on a tough route from Whitefarland point to Catacol bay, climbing Ceann Rheamhar, Sail Chalmadale and Mullach Buidhe before exploring all the high points on this plateaux. Fantastic views, lovely scrambling opportunities for future visits. Re-traced my steps to pick up my rucksack to continue the route to Beinn Bhreac.Dazingdale10/05/2016
Veryhappybunny29/04/2016
A two car route stared at Thunderguy then up path towards Coire Fhionn Lochan then off piste to Meall Bhig, Meall nan Damh, Meall Donn via path along ridge onwards to Beinn Bhreac, Beinn Bharrain and Casteal na-h-lolaire on a clear cool sunny day with Chris Watson. Then down to second car at Prinmill.Dugswell222/04/2016
On the ridge N to S w Jenx. Great weather day.nordicstar20/04/2016
The first hill climbed while doing the Pirnmill Hills traverse.Chris Mac03/09/2015
with Oliver Bartrum (18/08/2015)davidsbatty18/08/2015
with Mullach Buidhe-see log for Beinn Bharrain - Mullach Buidhepwheeler02/06/2015
lovely day with adjacent hillsoatcake21/09/2014
Debs and GoskaMountain Goat24/08/2014
See Beinn Bharraindickscroop15/05/2014
Long walk from Dougrie to Catacol with day Graham Foreman on a sunny, light wind and perfect visibility day. Some tracks on the hills. Dreadful trackless descent into Fairhaven from Meall nan Damh.alexmaclennan29/09/2013
RBS HWC Arran weekend. Walked with Jim and Mark P, Roy A and Gary B.langskill23/08/2013
Solo HFB15/07/2013
Bagged after visiting Mullach Buidhe.jonglew11/05/2013
As part of complete traverse of Pirnmill Hills ridge all the way from this top to the Marilyn Meall nan Damh, via Beinn Bharrain / Mullach Buidhe, Beinn Bhreac etc. A grand day's walking. On Casteal na h-Iolaire, the wee rocky tor looks higher from the cairn, but the cairn looks higher from the tor - not sure which is the true summit.milngavie_kenny24/07/2012
Good walking conditions with a cache on the top.Walker Dan16/06/2010
nice rocky summit, see S8730. RHW04/04/2010
Done en route to Mullach Mor. No views, mist. Quite rocky summit with sizeable cairn.Aye Jimmy28/07/2009
During a New Year week on Arran. A cold but clear, overcast day with Martin66 & Shaky. Took the usual way up from Pirnmill but encountered thick ice on the innocent looking ridge leading up to the SW top. Chopped up this with ice axes & continued round, again icily, to the main summit. Didn't fancy dealing with the ice descending the same way or the corrie descent, so continued round to Beinn Bhreac & then down steep but easy slopes at dusk to rejoin the outward route. A very fine day out.NotReallyABagger02/01/2009
On way to Bharrain.arranc21/09/2003
Ascents : 1yatchey01/01/2000
Ascended whilst cycling round the southern half of the island, after climbing Beinn Bharrain.JohnW18/10/1990
From PirnmillAlan Moore04/04/1983
June 2006. Circular from NR880467 with Mullach Buidhe.summitsup01/01/1952
ThickIce02/10/2023
mcbiydw227/08/2022
patrick12/08/2022
weaselmaster09/04/2022
Am Bodach28/06/2021
brucebob30/08/2020
Blair28226/01/2020
Robin5601/01/2020
Crumblie225/08/2019
try9fan29/04/2019
RichardMurchie31/03/2019
geoffh1231/08/2018
RichardMurchie14/07/2018
dave g10/07/2018
Toril30/06/2018
Neil Midgley29/05/2018
carole engel09/05/2018
Alex C17/11/2017
tomandivy14/09/2017
bertbarnett12318/05/2017
PaulineD09/05/2017
weaselmaster21/04/2017
Sick Kid21/04/2017
Jossker17/10/2016
pnecelt05/10/2016
chalky195308/09/2016
Martin R11/06/2016
benalder5011/06/2016
BaggerGutt30/05/2016
Tom Mundell15/05/2016
sarah mundell14/05/2016
Iona14/05/2016
Johnny Corbett11/05/2016
chriswatson22/04/2016
jenx20/04/2016
alda20/04/2016
Fellhugger17/11/2015
Paul and Terri01/07/2015
Gill23/06/2015
Driftwood02/06/2015
foggieclimber02/05/2015
m0untain_n0mad22/04/2015
Mudskipper10/09/2014
IainK24/08/2014
iainwalton16/07/2014
Alan Whatley06/05/2014
Norrie Muir02/05/2014
Gavin Theobald27/04/2014
NormanW25/04/2014
N.Morters22/03/2014
Steve Q08/09/2013
russell6119/07/2013
fedupofuserids29/05/2013
jimbloomer22/05/2013
Tony S27/04/2013
Lorna S27/04/2013
Ken_Stewart03/09/2012
daviemore09/08/2012
borderterrier19/05/2012
Laurel28/03/2012
Rowan28/03/2012
DaveMcS24/03/2012
jfwilson26/09/2011
interloper14/09/2011
Fletch14/09/2011
Sherlock14/09/2011
Thorny29/07/2011
mae29/04/2011
FCL27/04/2011
lordtonult05/11/2010
Louise01/08/2010
Wycombe Wanderer07/06/2010
mountaineagle31/05/2010
Isbjorn12/09/2009
BrianMatthews12/06/2009
hill walker11/06/2009
bertbarnett12314/05/2009
chrispine21/04/2009
Martin6602/01/2009
LizH15/11/2008
PeterAH15/11/2008
richtea504004/05/2008
ajwxyzt04/05/2008
iaindbrown14/03/2008
curlebd01/01/2008
MacAoidh20/10/2007
kathyh29/05/2007
PGCE15/05/2006
PeteN01/04/2006
Sherlock23/03/2006
Rambling Ray30/05/2005
neilsan27/03/2005
thenomad08/04/2004
coldfeet701/11/2003
Andrew Simmons05/10/2003
Rockdoctor31/03/2003
Colin Crawford14/03/2003
benalder28401/04/2001
Kiltie18/07/2000
chalky195311/07/2000
sarahk20/05/2000
Tricky28/08/1999
IainT04/08/1999
hughbagger27/07/1999
geoffreycurnock17/08/1998
rogreeves13/04/1998
StueyB26/03/1996
benarmine01/08/1995
trimarc221/05/1994
Ozymandias06/05/1994
TK01/05/1993
jabbott196801/01/1990
Minto31/07/1981
Moorponder15/04/1981
RichardM03/08/1979
Rob Rees20/08/1978
GordonAdshead01/08/1971
tsmart01/01/1950
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