Saint-Étienne-de-Serres: Le Serre de Lès

The Serre de Lès offers a magnificent 360° panorama.
The Alps, from Mont Ventoux to Mont Blanc, the Boutières, the Ardèche mountains and plateau, Rocher d'Abraham, the volcanic rock of Ajoux, the Chirouzes volcano, and the basalt flow of the hamlet of Chier.

Technical sheet

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  • Walking
    Activity: Walking
  • ↔
    Distance: 10.61 km
  • ◔
    Average duration: 4h 15 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Vertical gain: + 423 m
  • ↘
    Vertical drop: - 423 m

  • ▲
    Highest point: 969 m
  • ▼
    Lowest point: 592 m

Photos

Description of the walk

(S/E) From the village, follow the D8 to the junction with the D 244, at a place called La Traverse, pass the town hall: hiking information sign.

(1) Follow the path on the left for 900 metres, climbing up the ridge of the Serre de Chantoiseau.

(2) At the Chantoiseau mast, turn right onto the Route des Dragonnades towards the Col de Chomélix.

(3) At this pole, follow the track on the right, heading north-west, which descends to the Temple de Fival. Above the road, you can see the hamlet of Fival.

(4) Do not descend onto the D8, but take a fairly steep path on the left through the chestnut trees. This path crosses a rocky area; it is very well marked and easy to follow. It sometimes widens (track for agricultural use) then becomes a path again, running alongside the Fayes stream. Cross this stream, go through a gate, continue along the path to a small pass and go over the Lès farm on your left.

(5) At the three-way junction (Mât de Lès), turn left towards the south-west and take the path climbing to the summit of Lès. Go through a gate and continue straight ahead across the meadow to the summit marker (altitude 969 m).

From the summit, take the wide path on the left that descends around this small plateau, passing above the Micalaoudou rocks, descends towards the thirty or so characteristic pine trees of the Serre de Lès, then climbs back up to the left towards a landscape information panel.

(6) Then head towards the pine trees. When you reach them, turn right and take a steep path down to the ruined farmhouse of Les Césilles.

(7) Follow it, then turn left and continue along this main path, on the side of the slope, which descends to the pretty hamlet of Le Chier. Reach the Fare mast.

(8) Turn left and continue to the hamlet of Le Chier, then cross it.

(9) At the exit of the hamlet, head towards Saint-Étienne-de-Serres on the left, along a wide track between terraces and meadows, which leads back to the Col de Chomélix.

(3) Turn right and follow the same route as on the way there to return to Saint-Étienne-de-Serres (S/E).

Waypoints

  1. S/E : km 0 - alt. 592 m - D8 in front of the town hall: hiking information board.
  2. 1 : km 0.3 - alt. 602 m - Head towards Serre de Chantoiseau, on the left
  3. 2 : km 1.1 - alt. 680 m - Mât de Chantoiseau, on the right heading north-east
  4. 3 : km 1.75 - alt. 704 m - Turn right towards Le Fival - Col de Chomelix
  5. 4 : km 3.12 - alt. 642 m - Le Fival, on the left heading south-west
  6. 5 : km 4.54 - alt. 915 m - Mât de Lès, on the left towards La Fare.
  7. 6 : km 5.58 - alt. 931 m - Landscape interpretation table
  8. 7 : km 5.82 - alt. 891 m - Ferme des Césilles, path on the left
  9. 8 : km 7.2 - alt. 737 m - Mât de la Fare, on the left
  10. 9 : km 7.52 - alt. 705 m - Turn left towards Saint-Etienne-de-Serres
  11. S/E : km 10.61 - alt. 592 m - D8

Practical information

Saint-Étienne-de-Serres is a small hamlet where it is difficult to park more than two or three cars. Groups can leave from the Temple de Fival, which has more parking available in the temple car park.

Temple du Fival: exhibition on the Route des Dragonnades. Every year, it hosts a classical music festival called Les musicales du Fival.

There are other ways to get to Serre de Lès. The choice depends on how much time you have available.

Please note: chestnut picking is strictly prohibited.

In the nearby area

This hike takes place on trails of great richness and variety: broom-covered moors, chestnut groves, the chaotic granite rocks of the Micalaoudou, steeped in legend, and the beautiful basalt flow of La Fare.

The pines of Serre de Lès, proud of their originality in this rugged landscape, valiantly withstand all kinds of weather and allow hikers to find their way easily.

Legend of the Micalaoudou: a legend about half-wild children

Le Chier means "pile of stones".

Reviews and comments

4.5 / 5
Based on 37 reviews

Reliability of the description
4.3 / 5
Clarity of route map
4.3 / 5
Route interest
4.8 / 5
MarieArdeche
MarieArdeche

Overall rating : 5 / 5

Date of walk : Jun 04, 2025
Reliability of the description : Not used / Not applicable
Clarity of route map : Not used / Not applicable
Route interest : ★★★★★ Very good
Busy trail : No

A magnificent hike dotted with vast meadows and broom bushes. 360-degree panoramic view at Serre de Lès. Breathtaking scenery!
The cross-country section is a little challenging, but the arrival at the summit is well worth the effort.
There are quite a few cows along the route, so be careful not to disturb them!
A whole herd came to surround us despite the distance between us, and we had to cut short our picnic at the top of Serre de Lès. On the way back, 3 km from Saint Etienne de Serre, we had planned to stop at the Ferme Pays'Âne in the hamlet of Chier. A nice, relaxing place to stop!
A superb hike to avoid in summer during hot weather.

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rando_du_mardi
rando_du_mardi

Overall rating : 4 / 5

Date of walk : May 12, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Busy trail : No

A very beautiful hike, go quickly, everything is in bloom! Magnificent views from all sides at Serre de Lès. Beautiful view of the Chirouse volcano and the surrounding villages. However, the GPX does not correspond to the description, particularly at the start and then along the Fayes stream. Well marked in yellow/white in places, but nothing else. It's a shame, because the Ardèche is beautiful!

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vincent lyas
vincent lyas

Overall rating : 4.7 / 5

Date of walk : May 12, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

Hello, wonderful walk with a 360° view from the top of Serre de Lès. The start is not very well marked as you have to cross a field where cows are grazing and follow the fence. Otherwise, it's perfect.

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celestine
celestine

Overall rating : 4 / 5

Date of walk : May 08, 2022
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : No

Nice hike.

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papourando
papourando

Overall rating : 4.7 / 5

Date of walk : Jan 26, 2022
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

nothing to add to the other comments regarding the appeal of this hike with its superb scenery (especially in good weather).
We had no problems finding our way; without questioning the quality of the description, it should be noted that the yellow/white markings (which look fairly recent) are often helpful; in the description, it should be noted that at point 4 on the steep climb through the chestnut trees, you need to be very careful to leave the wide farm track and take the small path on the left at a right angle
In the "practical information" section, it would be good to highlight the historical significance of these places during the tragic events of the Wars of Religion ("route des dragonnades", mentioned on the information panel at the summit), which makes you want to find out more when you get home
Congratulations and thank you to the guide's author

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gabinou07
gabinou07

Overall rating : 4.3 / 5

Date of walk : Nov 19, 2021
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

A magnificent route in splendid weather. A sea of clouds in the Rhône valley and the surrounding valleys. Magnificent views of Mont Blanc, Mézenc, Gerbier de Jonc, Les Trois Becs, Vercors, Dévoluy and the peaks of Oisans. After the highest point at Les, watch out for the somewhat discreet signposting. The Micalouadou rocks deserve a little more attention.

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alainarnaud
alainarnaud

Hello,
this is the uphill section. After the rocky chaos, the path is wide and you need to turn right first. Shortly after the fork, a small path is only visible on a stone on the left.this is misleading because if you continue on the wide path, you will see the sign a little further up on the small path, but we thought that the signs on the main path ended there! We hiked back from the summit to find where we had missed the sign indicating the change!
I suggest that this fork be marked with a yellow sign on a tree on the right opposite the start of the trail. What do you think?

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dpcr
dpcr

Please let me know where on the circuit you encountered this problem. We will try to fix it.

Didier Picheral

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alainarnaud
alainarnaud

Overall rating : 3.7 / 5

Date of walk : Sep 12, 2021
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Busy trail : No

Everything was going well until we had to turn left! The only sign was on a rock on the left, while there were lots of markers on the right and, more importantly, some beautiful trees that could have been used to indicate the left turn 😡! Because of this, we ended up walking through brambles and barbed wire!
It was difficult but a pleasant hike with beautiful views!

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Magali B
Magali B

Overall rating : 5 / 5

Date of walk : Apr 15, 2021
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

The trail is very well marked, especially in the most difficult places: rocky chaos (4). We only hesitated once at the three-way junction (5) but found the trail again in the meadow.
It is possible to start the hike from Fival Temple.
A varied route with numerous unobstructed views.

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randonnée07
randonnée07

Overall rating : 5 / 5

Date of walk : Mar 08, 2021
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

The signposting is old, with only a few recent signs.
The hike is superb. We enjoyed a beautiful sunny day with a slight breeze. The ridge walk offers a great view of the various hamlets of Ajoux. And the pine trees of the Serre de Lès are so visible from afar and from many places that we were delighted to see them "in real life" up close.

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dpcr
dpcr

The Chier Bas trail along the road below (from Mas to Sablas) has been closed due to slippery conditions and poor accessibility, which is why the trail markings are gradually being removed. The IGN has not yet taken note of this, so the route is still marked in purple on the map. You can descend to the Auzène via Le Mounet and climb back up further downstream via the trail that leads to La Terrasse, then take the Route des Dragonnades

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ardechom
ardechom
• Last modified:

Hello Thierryb26,
Yes, that's exactly right.

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Thierryb26
Thierryb26
• Last modified:

Hello, could you specify the location of the problem? From Le Chier, we don't go down the road, we take a path (a good path, as I recall) at the exit of the hamlet to the Col de Chomelix.

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Amauric alain
Amauric alain

Overall rating : 4.7 / 5

Date of walk : Oct 24, 2020
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

From Chier Bas to the road below, which serves as a return route, the trail appears to be rarely used and is in poor condition and may be dangerous.

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