Aiguille de Chalais via the south ridge

A route to the Aiguille and the Monastère de Chalais. A relentless climb with a steep, slippery and exposed access ramp to the south ridge.

Details

52531579
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  • Walking
    Activity: Walking
  • ↔
    Distance: 5.65 mi
  • ◔
    Average duration: 5h 15 
  • ▲
    Difficulty: Very difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 3,005 ft
  • ↘
    Descent: - 2,982 ft

  • ▲
    Highest point: 3,570 ft
  • ▼
    Lowest point: 666 ft

Photos

Description of the walk

Access via Voreppe, Route de Bourg Vieux. Outside the Stravinsky School’s opening hours, there is authorised parking in front of the school. Otherwise, park 100 metres before it, opposite the blocks of flats, or on Chemin des Rayettes in front of the houses.

(S/E) From the car park, with it on your left, head towards Chemin des Rayettes. A large boulder then appears through the vegetation and, just after that, a path cluttered with roots branches off to the left. This is the access path to the ramp, which determines the rest of the route.

(1) Climb onto the large boulder to see the position of the ramp on the right, which is overgrown with vegetation. Ignore the two paths on the left, continue along the steep path and reach the ramp.

(2) Once you reach the base of the large white cliff, the ramp is right there; a fixed rope has been installed in the most exposed section. You’ll then reach a bend and the ridge.

(3) The path turns left: this is the exit from the ramp. The slope is steep, and you never stray very far from the ridge. You will then join the Chemin du Belvédère de Bellevue.

(4) This is on the left. After your visit and some photos, take the Aiguille de Chalais path on the left. It is equipped with wooden railings and cables in places. Once you reach the foot of the Aiguille, turn left.

(5) After taking in the view and reading the information board, return to the previous junction and turn left towards the Couvent de Chalais. You’ll come to a Fork in the road with the Chemin du Belvédère de Bellevue.

(6) Turn left towards the Couvent de Chalais and go round it by taking the path opposite at the junction. Continue until you reach the path on the right.

(7) Take this path, which descends through the pastures. After a hairpin bend to the left, leave a path marked with blue signs on your left.

(8) Carry on to the right and you’ll reach a wide track which you should follow downhill. After a hairpin bend, you’ll come to a Fork in the road with a grassy track.

(9) At the junction of several tracks, take the one heading to the right; it is grassy and poorly maintained and offers a slight shortcut off the main track.

(10) Follow it to the right until you reach a path with blue markings on the right.

(11) Follow this path, which takes you on another shortcut. Be careful, as the slope is steep. Return to the track.

(12) Turn right and pass close to the old Sautaret cement works. Continue until you reach the Chemin des Rayettes path on the right.

(13) Turn right. Pass at the base of the southern ridge of the Aiguille de Chalais, which you climbed earlier. The slope is just beyond, higher up amongst the vegetation. You’ll reach the junction from the outward journey.

(1) Carry on straight ahead and return to the starting point via the reverse route of the outward journey (S/E).

Waypoints

  1. S/E : mi 0 - alt. 669 ft - Car park in front of the school
  2. 1 : mi 0.27 - alt. 755 ft - Junction of the circular loop
  3. 2 : mi 0.57 - alt. 1,316 ft - Ramp
  4. 3 : mi 0.7 - alt. 1,542 ft - Ridge
  5. 4 : mi 1.42 - alt. 3,192 ft - Belvédère
  6. 5 : mi 1.78 - alt. 3,570 ft - Aiguille de Chalais
  7. 6 : mi 2.32 - alt. 3,068 ft - Chemin du Belvédère
  8. 7 : mi 2.75 - alt. 3,114 ft - Trail - Couvent de Chalais
  9. 8 : mi 3.53 - alt. 2,346 ft - Turn right
  10. 9 : mi 3.67 - alt. 2,159 ft - Grassy track
  11. 10 : mi 4.35 - alt. 1,391 ft - Trail
  12. 11 : mi 4.62 - alt. 1,266 ft - Path on the right
  13. 12 : mi 4.76 - alt. 1,086 ft - Back on the track
  14. 13 : mi 5.15 - alt. 843 ft - Chemin des Rayettes
  15. S/E : mi 5.65 - alt. 669 ft - Car park in front of the school

Notes

(2) The hike is rated TD because of the steep, slippery and exposed ramp.
The fixed rope on the ramp is a little high and offset on the slope side, which is not very encouraging. However, it is very useful because the ground was very slippery and there are few footholds such as steps or roots.
On the ridge, the path is clear and the box trees have been trimmed.
Be careful on the section below the viewpoint, as the slope is steep and, although the rock is good, there is also gravel.
From the (10), there are several possible descent routes on both sides of the ridge. You can also extend the hike by climbing up to the Pas de l'Âne if it is reopened and descending via the Cheminée.
Allow at least 4 to 5 hours to complete the circular route, depending on conditions.

Worth a visit

If you have time, stop by the biscuit factory to buy some biscuits.
Viewpoints at (4) and (5).

NB: This hike is based on Pascal Sombardier's guidebook.

Reviews and comments

4.9 / 5
Based on 6 reviews

Reliability of the description
4.8 / 5
Ease of following the route
5 / 5
Route interest
4.8 / 5
JCParavy
JCParavy

Overall rating : 5 / 5

Date of your route : Apr 21, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A circular route spotted on Pascal Sombardier’s blog and completed this spring once the snow had melted at these altitudes.
It is certainly a strenuous hike. A few variations followed:
- starting from the old Chevalon cement works, to make the return via the Combe de Malsouche easier;
- descent following the Malsouche stream, which is more pleasant and signposted.
I can confirm: the poorly placed rope is no longer there. All that remains is a length of telecoms cable attached to the trees for a few metres, but on the right-hand side.
You can actually manage without the handrail, but not without poles, and above all, you need dry ground.
I’ve added a few photos, as it’s a lovely day.

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fletcher_fr
fletcher_fr

Hello Thierry,
Thank you for your opinion.
Your comment is very valid. Not knowing the lower part of the course, I decided to take the shortest route.
This alternative is perfectly acceptable.

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Thierry Zolt
Thierry Zolt
• Edited:

Overall rating : 4.7 / 5

Date of your route : Feb 28, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

One of my favourite winter hikes. A challenging climb but with beautiful views. If I may comment on the suggested route, I don't see the point of the section between points 9 and 10. This path is in poor condition and very stony, whereas if you continue straight on at point 9, you reach the marked path that takes you back along the Malsouche stream (which isn't really a stream anymore, by the way). This well-maintained path is much prettier and more pleasant to walk along.

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User 17850304

Overall rating : 4.7 / 5

Date of your route : Dec 06, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Hello, the route was completed in mild weather but on very wet ground due to the week's rainfall.
The first 2 km are indeed very steep, with an average gradient of 40% and no breaks.
Good shoes and walking sticks are strongly recommended to prevent slipping and to stabilise yourself.
There is a beautiful view when you reach the footbridge. Small stools are available for eating.
The section towards the needle is much easier to access and the view is also magnificent.
The descent to the monastery is pleasant.
The 3/4 km after the monastery can be descended in trail mode (running) without fear.
The section after that is less interesting because there are a lot of rocks lying around and the end is more conventional.

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Thierry Zolt
Thierry Zolt
• Edited:

Overall rating : 5 / 5

Date of your route : Apr 21, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

I thoroughly enjoyed discovering the climb to Chalais. The climb to Bellevue has an average gradient of over 40%, which means it's quite challenging and should not be attempted in wet conditions. Walking poles are very useful. However, apart from the gradient, there are no technical difficulties and the path is well maintained. For this reason, I would also classify it as difficult. The GPS track is accurate, and it remains a very beautiful hike that I recommend, with beautiful panoramic views of the valley and the Vercors opposite. Thank you for posting it.

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fletcher_fr
fletcher_fr

Two reviews rate it as difficult, so I am changing the rating, but be careful on the ramp if the ground is very wet.

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ledi
ledi

Overall rating : 5 / 5

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

A very beautiful hike with a challenging but short start until you reach the ridge (15 to 30 minutes). The ridge is not exposed and therefore safe.
I would rate the hike as difficult rather than very difficult. The tour took 3½ hours.

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Jeanloic
Jeanloic

Overall rating : 5 / 5

Date of your route : Mar 03, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Superb hike, the climb is steep, sometimes exposed but not difficult. I didn't have to use the handrails. I didn't meet anyone on the way, but there were quite a few people at the Bellevue viewpoint (direct access from the Chalais monastery). The view is magnificent from the viewpoint and the Aiguille de Chalais. The GPS track is excellent. I completed this hike in 3 hours and 20 minutes. I would classify it as difficult but not very difficult. Thank you to the author.

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fletcher_fr
fletcher_fr

Hello,
I advise you to wait until the ground has dried out properly.

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ODEZENNE Hervé
ODEZENNE Hervé

I did this hike a few years ago, and I wanted to do it again, but I cancelled because of bad weather.

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bouvierjr
bouvierjr ★
• Edited:

Thank you for clarifying that this hike is a reworking of Pascal Sombardier's guidebook:-)

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Obiou38
Obiou38

Hello,
First of all, in the practical information section, it says: "(5) The hike is difficult because of the steep, slippery and exposed ramp." I think it's more like point (2) from what I've read in the description.
It should also be noted that this guide is largely inspired by the one published on Pascal Sombardier's blog in recent weeks. And the latter clearly states, regarding the use of his guides, that the reproduction of information on the Internet is permitted provided the source is cited... Which is not the case here, and the author seems to be very strict about this.

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