Circular walk around the Petit Som

A superb circular route, offering great variety in terms of terrain and sublime panoramic views.
Two sections require mountain-walking skills: the chimney (take care not to dislodge any rocks) leading up to the Petit Som ridge, and the Pas du Loup, which can be tricky (a rope may provide reassurance for less experienced walkers, depending on the day’s conditions).

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 5.24 mi
  • ◔
    Average duration: 4h 25 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 2,283 ft
  • ↘
    Descent: - 2,290 ft

  • ▲
    Highest point: 5,778 ft
  • ▼
    Lowest point: 3,701 ft

Description of the walk

Start from the car park at the Fork in the Road of Habert.

(S/E) Take the track that starts on the right at the edge of the car park. Follow the wide track to the Col de la Ruchère. The ascent is straightforward.

(1) At the pass, head east towards the Petit Som until you reach a sign reading: ‘Pas du Loup’.

(2) Turn left and climb straight up the slope beneath the Petit Som. This is quite strenuous as it’s straight up the steep slope; after a few hairpin bends, you’ll reach the ‘chimney’ leading to the summit.

(3) A short break is recommended before tackling this steep section. You’ll need to use your hands, and a few loose rocks require caution for fellow walkers below.
The view from the ridge is magnificent, revealing a vast panoramic landscape. Follow the path along the ridge, which is straightforward, to the summit of the Petit Som.

(4) Descend directly and easily to the Col de Léchaud.

(5) Continue straight ahead, south-east. The route is perfectly obvious and clearly visible. Pass through a small gap (very scenic) to descend towards the Col de Bovinant, where you can take a well-deserved break.

(6) Turn right; the descent begins towards the clearly visible Habert de Bovinant.

(7) Continue towards “Notre-Dame de Casalibus” along this wide path. Shortly after entering the forest, you’ll come to a fork to the right leading to the “Pas du Loup” (clearly signposted).

(8) Follow this stony but easy path to the right, which, via a series of short but gentle ascents and descents, leads to the Pas du Loup. This section requires concentration and caution and can be very tricky in wet weather.
This short section, where you’ll need to use your hands, is exposed as it overhangs a rocky ridge to the left and the rock is very smooth from the passage of walkers.

Continue towards the bottom of the valley. Ignore a path on the right leading up to the Col de Léchaud and continue the descent at a leisurely pace until you rejoin the route you have already taken.

(2) Head down to the left towards the Col de La Ruchère, from where you can look back and appreciate the route you have taken.

(1) Carry on along the track and head back to the car park at the Fork in the Road (S/E).

Waypoints

  1. S/E : mi 0 - alt. 3,720 ft - Abert car park
  2. 1 : mi 1.26 - alt. 4,639 ft - Col de la Ruchère
  3. 2 : mi 1.64 - alt. 5,023 ft - Junction for Pas du Loup or Petit Som
  4. 3 : mi 1.86 - alt. 5,495 ft - Beneath the Petit Som chimney
  5. 4 : mi 2.09 - alt. 5,745 ft - Petit Som (1772m)
  6. 5 : mi 2.29 - alt. 5,581 ft - Col de Léchaud
  7. 6 : mi 2.65 - alt. 5,390 ft - Col de Bovinant (1646m)
  8. 7 : mi 2.83 - alt. 5,344 ft - Habert de Bovinant
  9. 8 : mi 2.98 - alt. 5,164 ft - Junction, follow signs for “Pas du Loup”
  10. S/E : mi 5.24 - alt. 3,720 ft - Abert car park

Notes

This walk should be avoided in wet weather. The Pas du Loup section can be slippery and dangerous.

Worth a visit

From the Col de Bovinant, it is possible to extend the route slightly – though easily – towards the Dent de l’Ours and the Col du Frêt. For the fittest walkers, a round trip to the Grand Som (2,026 m) is an option.

Reviews and comments

4.7 / 5
Based on 2 reviews

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

Overall rating : 5 / 5

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

Superb hike. Worth repeating. The description is spot on.

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Okomani
Okomani

Overall rating : 4.3 / 5

Date of your route : Sep 12, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely walk with superb views at the top and along the ascent, after the Col de la Ruchère. The first section is through the woods so it’s a bit chilly, but as it’s quite a steep climb, you don’t actually feel the cold. The approach to the chimney is quite steep, and the chimney itself means you have to crawl on all fours. Great fun! If you’re into that sort of thing.
Once at the summit, we came back down via the north as I thought it would be less steep going down, and that way our walk formed a circular route. (At point 5, Col de Léchaud, head north towards Les Balmettes or Le Habert and follow the yellow markings)
Well worth doing again and again with children who are good walkers!

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