Mont Valier from Pla de la Lau

This demanding hike takes you to the "Seigneur du Couserans".

Details

2281509
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 17.49 km
  • ◔
    Duration according to the author: 6 hrs 
  • ▲
    Difficulty: Very difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 1,887 m
  • ↘
    Descent: - 1,887 m

  • ▲
    Highest point: 2,829 m
  • ▼
    Lowest point: 942 m

Photos

Description of the walk

Depart from the Pla de la Lau car park.

(S/E) Head south and take a wide, flat forest track. After a large open space, the path narrows under the light forest canopy. Follow the signs for the Estagnous refuge and Mont Valier. Stay on the left bank of the stream.

(1) At a fork, turn left towards the Refuge des Estagnous and Mont Valier (ignore the path that goes straight up to Barlonguère). Cross the Riberot via two successive footbridges. The trail then climbs up the right bank of the stream and crosses a few clearings alternating with wooded areas.

(2) At the intersection after Tute de l'Ours, take the path on the right and cross the Riberot stream via a footbridge. Now climb up the left bank of the stream to the Nerech waterfall.

(3) Cross the stream again via a footbridge. The slope becomes steeper at first: climb up a few switchbacks. The slope then levels out somewhat. This brings you to the Cabane de Caussis.

(4) Just after the hut, continue left uphill towards the Estagnous refuge (ignore the path on the right towards Étang Rond). The path climbs steadily east-southeast to reach the Estagnous refuge.

(5) The path continues eastwards, initially climbing gently. The gradient then becomes steeper and handrails secure the most difficult sections. You will reach the Col de Faustin.

(6) Then head north-east to climb relatively easy slopes. This will take you to the summit.

(7) Mont Valier. Return via the same route to the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 942 m - Pla de la Lau car park
  2. 1 : km 1.38 - alt. 998 m - Intersection with the Barlonguère path
  3. 2 : km 2.59 - alt. 1,160 m - Intersection after the Tute de l'ours
  4. 3 : km 3.62 - alt. 1,356 m - Nerech waterfall
  5. 4 : km 5.53 - alt. 1,846 m - Caussis Hut
  6. 5 : km 6.94 - alt. 2,247 m - Refuge des Estagnous - castillonais
  7. 6 : km 8.3 - alt. 2,659 m - Faustin Pass
  8. 7 : km 8.75 - alt. 2,829 m - Mont Valier
  9. S/E : km 17.49 - alt. 942 m - Pla de la Lau car park

Notes

Shelter: Cabane de Caussis
Estagnous refuge, staffed in summer and early autumn.
Be aware of certain wet sections, particularly on the climb up to the Nerech waterfall.
Be aware of the possible presence of snow (even in summer), particularly in the section between the Estagnous refuge and the Faustin pass.
The hike can be done over two days, spending the night at the guarded refuge (link above).

Worth a visit

The Rond pond. The flora and fauna of the Mont Valier nature reserve.

Panoramic view from the summit.

Reviews and comments

4.8 / 5
Based on 17 reviews

Reliability of the description
4.7 / 5
Ease of following the route
4.8 / 5
Route interest
4.9 / 5
Adé98
Adé98
• Edited:

Overall rating : 5 / 5

Date of your route : Sep 30, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

In the middle of the week, with the refuge closed, I met eight people. Personally, I did it as a day trip, leaving at 8:30 a.m. and returning at 7 p.m. (with a nice lunch break at the top of the mountain)
Magnificent view, but indeed very difficult given the elevation gain. Bring good shoes as there are a lot of rocks. The terrain becomes very wet after 3 p.m.
No ice or snow remaining off the trail, so no obstacles on the path during my hike
I spotted two isarts near Mont Valier.
Intermediate level for me. However, I ended up walking a total of 21 km without taking any detours... 😅

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manou3109
manou3109

Overall rating : 5 / 5

Date of your route : Sep 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Superb hike but steep climb from the car park to Le Valier.
Break at the refuge before tackling the Col de Faustin and then Le Valier
Spent the night at the refuge before heading back down, as there was far too much elevation gain and loss to do this hike in a single day (at least for me, of course).

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User 3291909

Overall rating : 5 / 5

Date of your route : Jun 30, 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. Seven and a half hours of walking without breaks, climbing at an average rate of 450 metres per hour.

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carameldu29
carameldu29

Overall rating : 4.7 / 5

Date of your route : Nov 11, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Hike to the Caussis hut.
The footbridge over the Nérech waterfall has been dismantled, but I managed to cross safely on the rocks.
Be careful climbing on wet rocks. Beautiful waterfalls all along the way!

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libellule1452
libellule1452

Overall rating : 4 / 5

Date of your route : Jul 27, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Hike to the Nérech Waterfall. 1 hour 45 minutes uphill to reach the foot of the waterfall (1 hour 30 minutes to descend). The Trous Souffleurs are pleasant in hot weather. Cows roam freely. Beautiful views of Mont Valier. Large enough car park. Accommodation available at the Maison Du Valier.

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Thierry DESCONNETS
Thierry DESCONNETS

Overall rating : 5 / 5

Date of your route : Oct 12, 2023
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Day hike.
The descent seemed much longer than the climb.

This hike is well worth a look.

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Tho_mas56
Tho_mas56

Overall rating : 5 / 5

Date of your route : Sep 09, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A day hike, with 7 hours of walking. My legs are really sore! But it's worth the effort.
The elevation gain is really tough, so be aware of that.
Otherwise, it's easy to follow the route. We met lots of people, if that's any reassurance.

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Nanou1965
Nanou1965

Overall rating : 5 / 5

Date of your route : Aug 12, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful hike, but only for experienced hikers due to the significant elevation gain. This hike should be done over two days, with an overnight stay at the Esptagnous refuge.
Superb area with the magnificent Mont Valier summit

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Pierre Pont
Pierre Pont

Hello,
Is this route easier than the one via the Estagnous refuge and the Faustin pass? (especially on the descent)

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Yann W.
Yann W.
• Edited:

Overall rating : 5 / 5

Date of your route : Aug 02, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

I hiked this trail on the weekend of 29/07/23, so I encountered quite a few people. There is a significant elevation gain to reach the refuge, and with my 15 kg bag carrying my bivouac gear, I struggled a bit. The surroundings on the way up are superb. Very beautiful bivouac spot around the refuge with a lake and small stream. Climbed to Valier the next day (1h05), then descended via the refuge through the Col du Pécouch and the Milouga lake in humid fog almost all the way, with no visibility . The descent was a bit long in these conditions (4h15 from the refuge, including a 20-minute break).
A very beautiful but demanding hike with a 2,200 m descent

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patquill
patquill

Overall rating : 5 / 5

Date of your route : Aug 26, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A demanding hike, but what a reward at the summit in fine weather!

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mlab55
mlab55

Overall rating : 4.5 / 5

Date of your route : Sep 20, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★★★★ Very good
Very busy route : Yes

Very beautiful hike, quite busy.
I did it in trail mode. I climbed to the summit with a pleasant break at the Estagnoux refuge before tackling the pass and the summit. It's quite a long climb with a significant elevation gain when done in a day. Superb view at the top. I ran down without difficulty, except for the length.
I started from the small car park at Pla de la Lau, where there are few spaces, but you can continue a little further up the road to the Vallier house.

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BubuBruno
BubuBruno

Overall rating : 4.3 / 5

Date of your route : Aug 19, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

I only did half the circuit, but it was great

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AUDEGRUISSANCATHARES
AUDEGRUISSANCATHARES

Overall rating : 4.7 / 5

Date of your route : Aug 17, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

I completed the route to the Nerech waterfall, but having done it four times a few years ago, I can say that the route is very well described.
This route is one of the most beautiful in the Couserans region.

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Patrick_Cde31
Patrick_Cde31

Overall rating : 4.7 / 5

Date of your route : Jul 18, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

this year, there were many people on this part of a challenging hike

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