In the Mortavieille valley at the start of Bonnenuit

This is a short hike with little elevation gain in the barren environment around the Col du Galibier, just for the pleasure of walking along a pretty valley and lazing around for a few hours in the afternoon in absolute calm. Rejuvenation guaranteed.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 5.80 mi
  • ◔
    Average duration: 3h 50 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 1,362 ft
  • ↘
    Descent: - 1,362 ft

  • ▲
    Highest point: 7,044 ft
  • ▼
    Lowest point: 5,735 ft

Photos

Description of the walk

Coming from Valloire towards the Col du Galibier, pass the village of Bonnenuit.
After crossing the Bonnenuit stream, carry on for another 600 or 700 metres until you reach the southern entrance to the village.
Park in the car park on the left-hand side of the road as you head uphill.

(S/E) Continue up the road for about a hundred metres.

(1) Turn right onto the track that descends into the Valloirette valley to the River Valloirette.

(2) Cross the river via a lovely bridge and continue along the track which winds its way along the left bank into the valley with its beautiful V-shaped slopes, at the bottom of which flows the Lauzette torrent.

(3) After skirting an alluvial plain, the track becomes a footpath as it clings to the left-hand slope.
After climbing quite high up the rocky slope, the path approaches the left bank of a tributary of the Lauzette, the Goléon torrent, and reaches a pastoral area where numerous ruins remain.

(4) Pass the ruins of huts and sheepfolds and continue along the Goléon.

(5) Cross the Goléon via a lovely footbridge with high balustrades.
Note: it is possible that this footbridge may one day be swept away by the torrent during a major flood, as everything is constantly shifting in the mountains; continue towards the upper part of the hamlet of La Lauzette.

(6) The hamlet of La Lauzette lies a little below on the left. Ignore a path branching off to the right towards the Goléon valley and continue due south until you reach the course of the Lauzette torrent.

(6) After fording the Lauzette torrent, you’ll find yourself in a lovely mountain pasture – perfect for a picnic or, why not, a nice nap.

(7) Return along the same route you took on the way out, back to the car park (S/E).

Waypoints

  1. S/E : mi 0 - alt. 5,745 ft - Car park near the upper entrance to Bonnenuit
  2. 1 : mi 0.1 - alt. 5,781 ft - Path leading down into the valley
  3. 2 : mi 0.47 - alt. 5,761 ft - Bridge crossing the - Valloirette (rivière)
  4. 3 : mi 1.29 - alt. 6,191 ft - Path after an alluvial plain
  5. 4 : mi 2.31 - alt. 6,788 ft - Ruined huts
  6. 5 : mi 2.48 - alt. 6,870 ft - Footbridge crossing the Goléon
  7. 6 : mi 2.67 - alt. 7,005 ft - The hamlet of La Lauzette
  8. 7 : mi 2.88 - alt. 7,044 ft - Mountain pasture
  9. S/E : mi 5.8 - alt. 5,745 ft - Car park near the upper entrance to Bonnenuit

Notes

There are no particular difficulties on this return walk with a modest elevation gain. Do, however, make sure you wear good walking shoes as there are numerous rocky sections. Walking poles may also be useful.
In summer, it can get very hot in this valley, which runs mostly north-south and is constantly exposed to the sun, with no shade at all for most of the day. There are no trees to take a break in the shade.
There’s no drinking water along the route, but the many streams allow you – if not to drink – at least to cool off: personally, we’re in the habit of wetting our hats whenever we come across even the tiniest stream.

Worth a visit

There are three possible extensions to this walk:
- the Goléon valley, by taking the path at point (6) which heads away from the hamlet of La Lauzette and leads to a superb rocky cirque.
- the Vallon du Fond, by continuing upstream along the Lauzette torrent.
- the Galibier gypsum deposits, which can be reached by continuing our route towards Plan Nicolas and following the Fontaine Lombarde stream upstream. Having already seen this type of formation, we preferred to visit them at a later date, approaching them instead from the Galibier road via Colomban Noir. From the hairpin bends of the pass, you can already enjoy fine views of these gypsum deposits.

Reviews and comments

4.7 / 5
Based on 8 reviews

Reliability of the description
4.9 / 5
Ease of following the route
4.9 / 5
Route interest
4.5 / 5
dme
dme

Overall rating : 5 / 5

Date of your route : Jul 27, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely walk, with magnificent scenery and a stunning stream.

The walk can be extended almost as far as the Galibier road, but the scenery is less interesting.

As I did the walk in the morning, the herds were penned up so there were no guard dogs about, but I preferred to take a detour; however, on the way back at around 10.00, those same herds were out to pasture, so I took a short detour.

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stjo
stjo

Thank you @Promeneur Laurentin for your additional photos, which show that you really enjoyed this route.

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Promeneur Laurentin
Promeneur Laurentin

Overall rating : 5 / 5

Date of your route : Jun 20, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Set off early to make the most of it

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Chaden
Chaden

Overall rating : 4.7 / 5

Date of your route : Aug 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A peaceful hike up the valley. Very few people, so it's very quiet after some much busier hikes in the Cerces Massif.
Thanks to the author for this hike!

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User 11886534

The yellow signs indicate Combe du Claret, Vallon du Goléon and La Lauzette.

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stjo
stjo

Ah, you mean the yellow signs at the entrance to the track that leaves the road towards the valley?
If I remember correctly, those signs weren't there when I did this hike.
If you remember exactly what is written on the sign for the walk, I could add this information to my guide.
Thanks in advance.

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User 11886534

Yes, absolutely. I was just pointing out that the signs don't mention the Mortavieille valley; you need to follow the Goléon valley or the Claret valley if you don't have a map

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stjo
stjo

@User 11886534, did you look at the IGN map? The Lauzette Valley, which this entire hike follows, is called "Combe de Mortavieille"; that is a fact. It's not surprising that the shepherd you met didn't know this name; he may know the place by another name.

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User 11886534
• Edited:

Overall rating : 4.7 / 5

Date of your route : Aug 10, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant, easy hike with a gentle, steady climb through the valley, refreshing mountain pastures and streams, beautiful scenery and a quiet route, all of which contribute to the serenity of the place. However, there were no signs for Mortavieille (even the shepherd didn't know the name), so we followed the Goléon valley.

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stjo
stjo

Thank you @vuagnoux for your constructive feedback. Your extension of this route is an excellent idea, and makes me want to follow it on my next visit. If you took any photos, please feel free to share them.

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vuagnoux
vuagnoux
• Edited:

Overall rating : 4.3 / 5

Date of your route : Jul 26, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Instead of turning back, we continued on and came out on the road to the pass. It is possible to descend, marked in yellow, towards the chalets (cheese sold in season). It's a shame that there isn't a path winding through the valley (still possible to see), so we followed the marked yellow path, which took us on a long circular loop around the western flank before we could descend to Plan Lachat... from there, a good marked path follows the stream and takes you back to Bonnenuit. Allow 14-15 km...

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stjo
stjo

@maumorando21 You are right to remind us that we should never approach herds in the mountains. This applies to both sheep and cows: cows generally seem very peaceful, but they can react unexpectedly, especially when they are with their calves. So if you have children, be careful not to let them be charmed by these lovely animals. You must be discreet and very respectful towards them.

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maumorando21
maumorando21

Overall rating : 4.7 / 5

Date of your route : Aug 05, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Hike completed in good weather conditions.
Herd of sheep on the route with sheepdogs. Stay on the path, do not approach the sheep and talk to the sheepdog to appease it. Everything went well.
The footbridge over the Goléon no longer has railings.
Enjoy your hike.

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groupe ballade73
groupe ballade73

Overall rating : 4.7 / 5

Date of your route : Aug 04, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful hike without too much elevation gain in a quiet, uncrowded area. Continue on to reach the Col du Galibier road. The round trip is very pleasant. A good training walk before tackling the magnificent walks in the region.

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stjo
stjo

@cathyferrer thank you for your comment. It's an excellent idea to continue like this until you reach the Galibier road. We would have done so if we had had a way (a second vehicle) to get back to the starting point by road. Perhaps next time, we'll leave our bikes by the side of the road at the highest point.
Crossing the gypsum quarries must be interesting. Do you have any photos to post for this additional part of the route?

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