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Name:Ben Oss
Hill number:67
Height:1029m / 3376ft
RHB Section:01D: Inveraray to Crianlarich
County/UA:Stirling (UA)
Catchment:Catchment Boundaries, Leven (Dumbarton), Tay
Watershed:Firth of Tay, Ardlamont Point to Fife Ness, Ardnamurchan Point to Lowestoft, Cardiff to Cape Wrath, Dover to Cape Wrath, Lowestoft to Duncansby Head, Firth of Clyde, Land's End to John o' Groats, The Lizard to Dunnet Head
Class:Marilyn, Hump, Simm, Munro, Murdo,
Grid ref:NN 28765 25340
Summit feature:cairn
Col:687m  NN274245  
OS map sheet(s):(1:50k) 50
(1:25k) OL39N 364N 377E
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 647 users, only the latest 50 shown - Show all)ByDate of Ascent
Another dry but overcast forecast, equals another two Munros, Beinn Dubhchraig (978m) and Ben Oss (1029m), accessed from Dalrigh on the A84 between Crianlarich and Tyndrum, 08:20hrs all in. An early meant there was some low cloud on the way up and on the summit of Beinn Dubhchraig, but this was beginning to clear by the time I got to Ben Oss. Once this past it was an enjoyable walk down with great views down Loch Lomond and to the eastern hills above Tyndrum and Crianlarich. Horribly boggy route up through the old Caledonian forest, but as I discovered on the descent, I had missed the path completely and ascended up through the bog by mistake.chillyman808/07/2020
Debs and Tali, from the bytheway campsite, up via Dalrigh and down via Cononish.Mountain Goat30/09/2019
Cononish (cycled from Tyndrum) - up NW arm of Coire Gaothach to Ben Lui - Beinn a Chleibh - traverse to Ben Oss - Ben Oss NE Top - Beinn Dubhchraig - down N ridge and over new bridge over river at Cononish.Mark Jackson23/08/2019
Climbed with Lorna. Saw Ptarmigan.Skerryvore06/07/2019
1029mThe Grouse03/05/2019
From Dalrigh (NN 34389 29110) - Coille Coire Chuilc - Beinn Dubhchraig - Bealach Buidhe - Ben Oss North Top - Ben Oss. Return by the same route except re-ascent of Beinn Dubhchraig. Generally very wet underfoot until reaching Beinn Dubhchraig ridge, mostly stony paths thereafter.david23020129/04/2019
From Dalrigh, over new bridge and up Coire Choille Chuilc - the engineered path after the bridge soon ends and the quagmire begins, though it was partly frozen today. Then, from the tiny lochan on the shoulder of Beinn Dubhcraig, down into the bealach using the ice/snow ramps through the two craggy areas. Back up to Beinn Dubhcraig and down its NE ridge, but unable to locate the rides etc reported in someone else's log - found a way down streams etc to the 'green' forest track running S, E then N back to Dalrigh.Isbjorn Winter Round10/02/2019
Sunny day bitterly coldwullclark02/02/2019
From Dalrigh carparkDanmawr06/10/2018
Anticlockwise circuit of Ben Lui, Ben Oss and Beinn Dubhchraig from Dalrigh. Walked into Coire Gaothach then ascended S flank of Stob Garbh. Superior route to the ascent from the W I used in 2017.welshyboyo07/08/2018
with Young Tayside walkersHuwel20/05/2018
From Dalrigh, avoiding the Slough of Despond, by forest tracks looping east before rejoining the ascent path at the waterfall. NE ridge to Beinn Dubhchraig, via the edge of Coire Garbh to Ben Oss, along the ridge to the NE Top and the lochans that mark the start of the descent path. The little waterfalls on the upper Allt Coire Dubhcraig were beautiful in the sunlight, flowing into malachite and aquamarine pools.Nick Down119/05/2018
15 miler from Tyndrum taking in Ben Oss and Ben Lui. Tough walking but great winter conditions and amazing views.liljonb21/02/2018
With JW, OA and Matt. From Dalrigh, up Cononish Glen to ascend North East ridge of Ben Lui. Traversed over to Being a' Chleibh, contoured back round to ascend Ben Oss and Being Dubhchraig before descent back to carpark. Great views.robertgn07/01/2018
With ChristineKeith9912/08/2017
With keithchristine9912/08/2017
From Dalrigh, along forest track to where it crosses the Allt Gleann Auchreoch, then straight up through forest (mostly on trails) to Beinn Dubhcraig NE ridge, thence to summit. Traverse to Ben Oss via Coire Garbh and up on to NE ridge, thence to summit. Return along Ben Oss NE ridge, re-ascent of Beinn Dubhcraig NW ridge as far as the lochans, then straight down Coire Dubhcraig to the forest, re-joining the track back to Dalrighkdbennett02/04/2017
From Dalrigh, a round of Ben Lui, Ben Oss and Beinn Dubhchraig.rhalstead26/09/2016
With Littledog including Beinn Dubhchraig mproudfoot05/06/2016
Approached from Ben Lui...This hill has lots of false summits!Ruth05/03/2016
My first Brocan SpecteMoragElizabeth01/11/2015
Cycled to Cononish from Dalrigh then climbed the 4 Munros. On own.MorecambeMonkey17/08/2015
Ben Lui excursion.justin99912/08/2015
Big walk from camp site in tyndrum. I ended up walking to Dalrigh as I could not cross the track at Tyndrum due to Network Rail enough said. In the coire gaothach I went to far south so ended up cutting across the snows of central gully and then up to a point just west of sron garbh. The North East ridge was easy but fun. I visited both summits, I then went over to Beinn a chleibh and returned to col with Ben Lui I then contoured round to the col with Ben oss. The North East ridge of Oss was fun as I glissaded down the snow patches. It was then over the subsidiary top and up Beinn dubhchraig. I reversed to the lochans and and went down the path to the north of the allt coire dubhchraig. Lower down this was boggy towards the bottom I turned south crossed the river cononish and picked up the outward path near the bridge under the railway. I returned on the West Highland Way to Tyndrum. I walked 17.5 miles in 9.25 hours with 1830 metres of ascent.isabelle15/06/2015
With Tony Gordon. From Cononish up Beinn Dubhchraig and along to Ben Oss. Returned from Lochan NW of Beinn Dubhcraig to Tyndrum.zoob25/05/2015
Third of four, with horrible weather on the way up. Roisin did not enjoy this Munro.GravelMonkey25/05/2014
Solo Uisdean2519/04/2014
With Brian R. from Dubhcraig. Staying at Ochil's Club Hut.Play2End28/03/2014
Climbed with Andy Brown and Oliver Stephenson on 18.01.2014. Stayed at Lagangarh Hut Glencoe. Started at Dalrigh car parkDavidjones18/01/2014
Cracking hill with mega views of Ben Lui. Big drop between the two hills.akmilne13/07/2013
Julie B and Paul Mandell.Bookerdddd22/02/2013
with Markgrimjimm18/08/2012
With Tim.Loz_mck03/07/2012
Estimated date - done soloAimless Rambler15/06/2012
With Andy C., as a circular route from Dalrigh with Ben Lui, Beinn a'Chleibh and Beinn Dubhchraig. Fantastic weather. Ben Oss is a good hill.milngavie_kenny26/05/2012
6 of 8: From Ben Lui.ChrisR20/05/2012
MMC walk but Solo walk of the 4. wet snow. Fantastic views as tops all clear.alexmaclennan21/04/2012
Done as third of 4 peaks on Tyndrum circuit. No objective difficulty, but the re-assent does seem much greater than the map data would suggestwychwood30/03/2012
Jon Clarkehutonthehill22/09/2011
Fourth marilyn of the day on anticlockwise loop from Tyndrum.campagvelocet09/08/2011
Solo walk with bike from Dalrigh in hot dry conditionsbarnz4802/07/2011
the ben lui group of 4 munros cycled to end of track at farm, great day.robertphillips14/04/2011
With Ian Soulsby.Dangerous Dave06/03/2011
A real bog fest. Company: Jake the Black Lab.iandesbottes19/10/2010
From Dalrigh, walk up Glen Cononish and up Ben Lui, met Marcus Dixon. Weather very fine but high c loud kept sun at bay, slight breeze but flat calm on last peakCapt Malbec31/08/2010
Great views over to Ben Lui and south to Loch Lomond.Roblex29/08/2010
After Dubhcraig skirted round southerly flank and climbed far side of mountain. Great views and fabulous visibility. Exquisite light on descent with evening sun picking out contours on hills and catching Scots pines on lower slopes. 2 deer spotted in cleadave neilson15/08/2010