Time  7 hours 23 minutes

Coordinates 3320

Uploaded September 24, 2018

Recorded July 2018

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3,804 ft
409 ft
7.76 mi

Viewed 6101 times, downloaded 145 times

near Kinlochleven, Scotland (United Kingdom)

Beautiful and fairly strenuous hike from Glen Coe into the area of the Three Sisters, onto the highest peak in Argyll at around 1150 m, and down into the scenic Lost Valley. The three sisters are three north-south ridges, from east to west as seen from Glen Coe: Beinn Fhada, Gearr Aonach and Aonach Dubh. Both ascent and descent are steep. The average climb is about 22 %, the initial descent into the Lost Valley (Coire Gabhail) is more than 35%. There is some scrambling and walking on scree, and according to some descriptions I read there can be snow until summer. There are no facilities on the way. The path is clear most of the way, except in the higher valley just below Stob Coire nan Lochan, where the path is less obvious. The views on this hike are superb with among others Ben Nevis, Loch Leven and Loch Linnhe, Loch Etive, Mull and a wide range of mountains all around. I saw red deer in the early morning when I started my ascent into Coire nan Lochan.
You start at a parking lot in Glen Coe on the scenic highway A82. It can become very busy here, another reason to start early as I did. From the parking lot you descend towards the river Coe, cross the bridge and start your ascent into Coire nan Lochan, the deep valley between the two sisters Gearr Aonach and Aonach Dubh. The clear path rises steeply from Glen Coe. Higher into the valley, there are some waterfalls you pass close by. The peak Stob Coire nan Lochan appears at the end of the valley. At about 655 m you come to a bifurcation below a waterfall and a small canyon: a clear path keeps to the east of the stream ascending towards the east ridge of Stob Coire nan Lochan. I did not take this path (supposedly steeper and more scrambling), but crossed the stream and continued on a less clear path through grassy ground with common cottongrass. This path goes up to a higher valley with some small lakes just below the great Pinnacle and South Buttresses of Stob Coire nan Lochan. Here in this grassy valley, I lost the path a few times, but this did not present any problems. When nearing the western ridge of Stob Coire nan Lochan (higher reaches of Aonach Dubh) you join the path again. On the ridge, the views are great, towards Loch Leven, Glen Coe and Ben Nevis. Once on the ridge, the path disappears again on the scree. Take care because you walk near steep buttresses and loose scree. On the ridge you walk to the summit of Stob Coire nan Lochan at 1115 m with the higher Bidean nam Bian becoming visible towards the south. From the top, you cross to the Bidean nam Bian summit via a ridge with Diamond Buttress slightly to the right. The last part to the summit of this Munro (Scottish mountain above 3000 feet) is quite steep. On the top, the view is great in all directions. From the summit, you walk southeast on the mountain ridge towards the saddle point Bealach Dearg, with great views of the Lost Valley appearing on your left. From the saddle point you could continue straight on to the top of Stob Coire Sgreamhach, another Munro, especially if you are into the slightly compulsive hobby of Munro bagging, and then come back. However, I turned left for the steep scramble down into the eroded scree gully. After the gully, you keep scrambling on scree but the path is well visible. Walking down you keep to the left of the gorge. Further down you cross a stream coming out of a gorge below the ridge between Stob Coire nan Lochan and Bidean nam Bian (a path can be seen climbing up to this ridge, but I did not notice it from the ridge itself). You continue on the left side of the valley until you get down to an almost level valley strewn with boulders. The river flows below the boulders here. A couple of large boulders guard the entrance to the steep valley north. The valley is called Lost Valley because people used to hide cattle here from people travelling through Glen Coe. From the Lost Valley you have to climb a bit on the Beinn Fhada lower reaches before descending steeply through woods and boulders down to the river which you cross on stepping stones. The path passes a waterfall and then Glen Coe opens up before you. The trail passes moorland on wooden planks and brings you to the second bridge of the day across the Coe river. This crossing is accompanied by a climb on metal stairs. On the other side of the river, the view of the three sisters is great. You join the main path through the valley and then climb back to the parking lot.
Information point

Aonach Dubh ridge

Here you arrive to the northwestern ridge from Stob Coire nan Lochan (the Aonach Dubh ridge). The views here are great towards Loch Leven, Ben Nevis and Ballachulish.
Mountain pass

Bealach Dearg

Saddle point between Stob Coire Sgreamhach and Bidean nam Bian. From here a steep eroded gully marks the start of the trail down into the Lost Valley.

Bidean nam Bian

Summit of Bidean nam Bian, the highest peak in Argyll with great views


The path bifurcates here. To the left/straight on is a clear path to the eastern ridge of Stob Coire nan Lochan and on the right across the river is a less clear path to the western ridge of Stob Coire nan Lochan. Straight on is a canyon with a waterfall.
Information point

Boardwalk through moor

Here wooden planks have been put in the moor, obviously to avoid muddy feet in wet conditions.

Bridge River Coe

The first bridge across the river Coe

Bridge River Coe 2

The second bridge of the day across river Coe
Information point


The north face of Stob Coire nan Lochan is a ragged ridge full of steep rock faces. Take care not to get too close to edge!
Information point

Climb out of Lost Valley

Here you climb out of the Lost Valley
Information point

Glen Coe and the three sisters

Here you are in Glen Coe with a great view of the three sisters

Little waterfall

Little waterfall
Information point

Lost Valley

Here starts the boulder-strewn Lost Valley
Information point

Path on west side of Coire Gabhail

Here you walk on a trail on the west side of Coire Gabhail
Information point

Path up to Coire nan Lochan

The path up to Coire nan Lochan is steep but of good quality. The view towards the valley is great.
Information point

Ridge down from Bidean nam Bian

Here you walk on the ridge down from Bidean nam Bian with several local peaks before you arrive to the saddle point Bealach Dearg. Lost Valley is on the left.
Information point

Ridge to Bidean nam Bian

This is the ridge between Stob Coire nan Lochan and Bidean nam Bian

River Allt Coire Gabhail crossing

Here you cross the river Allt Coire Gabhail
Information point

Scree slope

The walk across the ridge leads you across various scree slopes before you reach the summit.
Information point

Side river crossing

Here you cross the stream coming from the gorge on the northeast side of the ridge between Stob Coire nan Lochan and Bidean nam Bian.
Information point

Steep path down

Here is a steep path down into the Lost Valley with scree.

Stob Coire nan Lochan

Summit of Stob Coire nan Lochan
Information point

Valley with lakes

Valley with lakes below Stob Coire nan Lochan




Waterfalls in Coire nan Lochan


  • Photo of josepmora

    josepmora Jul 28, 2019

    I have followed this trail  verified  View more

    Gracias por compartir tu ruta. Nos ha ido muy bien seguirla.

  • Photo of Tjaart Molenkamp

    Tjaart Molenkamp Aug 30, 2019

    Gracias por el comentario y la revisión, josepmora!

  • Photo of mehdi.tabibvand

    mehdi.tabibvand Mar 1, 2020

    What a beautiful nature and wonderful photos
    I was excited to see your pictures
    Wishing you all the best, dear friend

  • Photo of Tjaart Molenkamp

    Tjaart Molenkamp Mar 2, 2020

    Thanks Mehdi! Glad you liked them.

  • James Clifford Jul 11, 2020

    Interested in doing this circuit with my son in August with Wild camping along the way, how long did it take you roughly? he is only 3, do you think it is too risky at any point?

  • Photo of Tjaart Molenkamp

    Tjaart Molenkamp Jul 12, 2020

    Hello James, it took me more than 7 hours, rests included. You will find scree, steep slopes and rough terrain, and at some points you need to scramble. My guess would be that 3 years is a bit young...

  • James Clifford Jul 12, 2020

    ok thank you, maybe we will explore the lost valley only, or bring a short rope and the harnesses! ;)

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