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Ben Oss & Beinn Dubhchraig
Quick Facts
This is the summed total of all the climbing within a route and is a good indicator of the strenuousness of a route.
Total Ascent
1438 m

An estimate of the time taken based on a derivation of Naismiths rules. Our calculation is based on the horizontal and ascent components of a climb, we do not make a reduction for descent.

Registered users can customise these walking times by specifying their own walking and ascending speeds. They can also add a fixed time period for stoppages.

Route Time
6.5 hrs
The horizontal distance of the route.
Route Distance
19.25 km

The UK is covered by 204 Ordnance Survey Landranger 1:50,000 scale maps. Maps numbered 1 to 86 cover Scotland but for the highest mountains (Munros) only 23 maps are required. The name given roughly describes the area covered by the map.

You can click on the map name to purchase the map for £6.29 including postage which is one of the cheapest prices we have found.

OS Landranger Maps Required
  50   Glen Orchy & Loch Etive
Only £6.29  (£13.49 Laminated) from  

A brief summary of this route.

Our summary will always contain one of easy, moderate or hard to indicate the severity of the route.

Not a difficult route once you have negotiated the forest. Ben Dubhcraig is rocky on the southern face but this is avoided.

Here we provide the nearest town to the start of the route where you will find basic services.

We then give directions from that location to the route start. Your approach route may differ.

 Travel Information

Head to: Tyndrum

From Tyndrum (A82) travel 2 km East to a car park at junction with minor road, near Lochan nan Arm.

Route Waypoint Map

The total ascent is 1,438 metres. Allow 6.5 hours to complete this 19.25 km route.

In winter months please check the local snow conditions at sais.gov.uk.

The hillphones service can inform you of stalking activities in the area.

Usually the shortest way to climb the mountain, making best use of tracks and paths to gain altitude. Route navigation requires map reading skills and an ability to navigate with a compass.

The information given here will enable you to annotate your map and plan your route. We do not give anecdotal descriptions on where to find the paths, worn by the feet of previous mountaineers.

Where the access routes are few or the ridge is narrow, paths are generally obvious. On open ground, following paths without using your compass may get you lost in poor visibility.

 Route Information
Waypoint Detail
  Start from carpark, not visible from main road (A85)
  NN34362917 Distance
190 m
Follow rough road W past Dalrigh to railbridge
NN33282880 Distance
1.25 km
215 m
Continue W until 250m E of Cononish Farm, then head S to bridge over river
NN30412832 Distance
3.20 km
270 m
From bridge ascend SE to easy slopes to above Creag Bhocan
NN30912763 Distance
0.85 km
600 m
Ascend SSW on ridge to lochans
NN30282585 Distance
1.97 km
905 m
Bear SE to summit of Beinn Dubhcraig
NN30782547 Distance
0.60 km
978 m
Return NW to Lochans
NN30282585 Distance
0.60 km
905 m
Return to lochans and descend W to col
NN29832593 Distance
0.47 km
780 m
Ascend W turning WSW to minor top (941m)
NN29112585 Distance
0.77 km
941 m
Head SW to summit of Ben Oss
NN28782536 Distance
0.63 km
1029 m
Return NE to 941 Top
NN29112585 Distance
0.63 km
941 m
Descend E onto col
NN29832593 Distance
0.77 km
780 m
Return E to the Lochans
NN30282585 Distance
0.47 km
905 m
Bear NNE and follow ascent path back to the start
NN34362917 Distance
7.04 km
190 m

A selection of weather forecasts local to this route.

West Highlands
by MWIS (PDF format)
West Highlands
by Met Office
Ben Oss
by Metcheck
Images of Ben Oss & Beinn Dubhchraig
Route Area Map
Legend  Munro  Corbett  Graham  English/Welsh Top  Accommodation

A selection of local accommodation options who advertise with Munromagic.com.

 Where to Stay
We currently have no
sponsored accommodation listings for this area.

Rating & Reviews

 Rating & Reviews
 from 9 votes
Click Stars to Vote
Your Rating
Written by Steve Macluskie on 11 Dec 2008:
Climbed Ben Dubhchraig by itself on a short sub zero heavy ground frosted day. Glad the ground was solid as I could easily walk across what I imagine would be very heavy ground in wetter weather (the ice was a different hazzard). Took the route up through the superb wintry forest and out onto the hillside approaching the mountain up the NE ridge. Returned back through the forest since it looked great in it's winter clothes.
Written by Craig Dunderdale on 07 Jun 2005:
Take Bill Wales advice and bike/walk to Cononish Farm. Initially there is a steep grass ascent but not too hard. On the return journey at the first bealach met from Ben Oss descend North into the Coire. Some useful cairns indicate the way and it's not as steep as you may think. A really enjoyable sunny day which took 5 hrs
Written by Bill Wales on 16 Oct 2004:
We tried Kathleen Haddows suggestion of taking the right path on crossing the Allt Gleann Auchreoch. This proved to be a wet, but not muddy, route trodden by fisherman and follows the riverbank upstream leaving you to plow uphill through moss and heather. If you want to avoid the mud, deep heather and deer fences, follow the road up Glen Cononish to Cononish Farm where a bridge (NN304283) leads onto the fairly steep, but easy, northern slopes of Beinn Dubhcraig. Head S 3km to the summit ridge. Great views of Oss and Lui on ascent and descent.
Written by Kathleen Haddow on 02 Oct 2003:
If you head up the hill beside the river be warned, The path is really boggy and muddy. We found our own way onto the ridge on the way up and decided to use the path on the return thinking it would be quicker. Big mistake! I've never encountered so much muck ever!!!!! Also, when you cross the Allt Gleann Auchreoch there are two choices: the left hand path takes you into the mud bath.
Written by Rob Jeffries on 28 Apr 2003:
My only comment here is watch those styles over the deer fences. I climbed these last *summer* and the mud was, without exaggeration, more than knee deep and impossible to avoid in a ~10 foot radius around one of the styles. Furthermore, there was a close-to-Buster-Keaton moment when I raced through the mud, leapt onto the ladder and found that it wasn't attached to the fence. I began to fall backwards, but fortunately grabbed the fence wire and it held :) I combined these mountains with Ben Lui and Beinn a Chleibh (dropped off and picked up at the end though).
Disclaimer. The details provided above are an aid to planning an expedition, but all distances, altitudes and bearings must be considered approximate. You must navigate with the appropriate map, a compass, your navigation skills and common sense, MunroMagic.com accept no responsibility for your interpretation of our route information.
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