Ax-les-Thermes - Mérens via the Chemin de Llatta

A challenging first stage of exploration in an unspoilt environment.
A basic understanding of map reading and navigation is required.
The GPX track on Visorando or on a GPS is very useful from the start and at the numerous junctions.
It is entirely possible to shorten the route if necessary: see practical information.

This walk is part of a multi-day hike: Tour de la Montagne d’Ax et de Mérens en Haute-Ariège

Details

24905313
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 8.43 mi
  • ◔
    Average duration: 7h 00 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: No
  • ↗
    Ascent: + 3,563 ft
  • ↘
    Descent: - 2,087 ft

  • ▲
    Highest point: 5,610 ft
  • ▼
    Lowest point: 2,293 ft

Photos

Description of the walk

Go to Ax-les-Thermes railway station. Free car park with 125 spaces.
Public transport: train, bus.

Off the marked route

(S) Head towards the town centre. After about 350 m, turn right and cross the River Ariège via the road bridge.

Yellow and red markings for theGRP®® Tour des Montagnes d’Ax.

(1) Turn left onto theGRP®® and follow the Ariège for about 400 m.

(2) Cross the Ariège river again via a road bridge and turn immediately right.

(3) Cross the footbridge and arrive at the ticket offices for the Ax-Bonascre cable car.
Pass under the cable car and turn right, heading uphill to rejoin theGRP®®. Walk alongside the spa and head uphill to the right until you reach the end of a cul-de-sac. Continue through the gap between the houses and carry on straight ahead, heading uphill. After about 50 m, you’ll reach a fork in the path.

(4) Carry on straight ahead, following the GRP®® signposts. You’ll reach a five-way junction. Take the second road on the left, walking alongside a building with a picnic area.
You’ll reach the N2020. Cross at the pedestrian crossing and head uphill opposite along theGRP®® for about 150 m.

YellowPR®®signposting

(5) Turn right, heading due south along thePR®® or Chemin du Llatta, towards Petches. Pass under the railway line. Take care: there are many odd signs that can be misleading. Pass under a power line and continue climbing. Join the road leading to Petches. Follow it to the right and arrive at a fork with a wash house and a drinking water tap on your right.
“A short detour into the village is possible.”
With the wash house behind you, set off along the street that bends to the right and you’ll soon reach an area with some very distinctive signposting.

(6) Head uphill to the left along the lovely path through the woodland, passing a wooden chicane. Cross the Route Forestière du Llatta, skirt it further on and continue uphill. Join the forest road once more and follow it to the right. At the tight left-hand bend that follows, carry on straight ahead to reach a four-way junction at an elevation of 1265.

(7) Set off straight ahead, due south, then head south-east along this good path. Join the Route Forestière du Llatta once more and follow it to the right for about 150 metres until you reach a grassy track that climbs to the left.

(8) You can walk a few metres further up to a lovely, well-maintained and fully equipped hut.
A lovely spot for a well-deserved break.
Continue along the forest road and, very soon after the next bend, head straight on along a lovely path that climbs through the forest. Cut across the Lacout Forest Road and continue climbing through this beautiful beech woodland.
You’ll reach a fork in the path with signposts nailed to the beech trees.

(9) Head straight on towards the Col de Joux and its clean, well-maintained hut.
An excellent spot for a well-deserved lunch break.

(10) Turn back and head down to the previous fork.

(9) Carry on to the left towards Pont du Rial via Courtal – Juan. Follow an almost level path to reach the closed forest refuge (noted on 1 August 2022). Continue down for about thirty metres along the track, which has been damaged by forestry work, and reach a junction of forest tracks at elevation 1545.

(11) Turn sharp right, staying almost level, and reach a junction of three main tracks and a fourth, overgrown track that is less visible. Directional sign.

(12) Turn left and descend along this overgrown track, heading towards: Couillet de Bergon, Mérens No. 21

(13) Reach a junction of two tracks and a path at the small Col de Couillet de Bergon, deep in the forest. Turn left, heading due south along the path, and begin a descent through the forest to reach a track suitable for vehicles. Follow it to the left, heading due south. Pass under a power line and continue generally due south. Arrive directly beneath another power line.
Leave the track and turn right for a few metres to discover the small iron Croix de Larguis and a fine view of the valley and Mérens. Mown area (observed on 1 August 2022).

(14) Return to the track and cross it to climb up the opposite side via a lovely path running along a ledge above Mérens.
You’ll arrive opposite the Saint-Pierre Chapel in Mérens-d’en-Haut. Walk a few metres to the right along the road and head down to the right along a stony track to reach the inn.

(E) Auberge du Nabre: stopover for the first day.

Waypoints

  1. S : mi 0 - alt. 2,293 ft - Gare d'Ax-les-Thermes
  2. 1 : mi 0.24 - alt. 2,297 ft - GRP, on the left. Cross the - Ariège (rivière)
  3. 2 : mi 0.46 - alt. 2,320 ft - GRP. Ariège Crossing
  4. 3 : mi 0.54 - alt. 2,333 ft - Footbridge over the - Oriège (rivière)
  5. 4 : mi 0.77 - alt. 2,487 ft - GRP. Fork in the path, opposite
  6. 5 : mi 1.24 - alt. 2,543 ft - End of the GRP. Head towards Petches
  7. 6 : mi 1.96 - alt. 3,117 ft - Petches. Wash house, drinking water. Chemin Llatta
  8. 7 : mi 3.03 - alt. 4,137 ft - Elevation 1265. Fork in the path
  9. 8 : mi 3.68 - alt. 4,708 ft - T-junction for the return route to the Borde de Gabriel (open)
  10. 9 : mi 4.41 - alt. 5,407 ft - T-junction for the return route to the Col de Joux
  11. 10 : mi 4.59 - alt. 5,610 ft - Col de Joux (1702m)
  12. 11 : mi 5.63 - alt. 5,092 ft - Junction onto a forest track
  13. 12 : mi 5.89 - alt. 4,997 ft - Junction on a grassy track
  14. 13 : mi 6.03 - alt. 4,898 ft - Couillet de Bergon, on the left
  15. 14 : mi 7.71 - alt. 3,770 ft - Larguis Cross
  16. E : mi 8.43 - alt. 3,750 ft - Auberge du Nabre - Gare de Mérens-les-Vals

Notes

Mid-mountain terrain: you’ll therefore need suitable kit, including: warm clothing and rain gear, two litres of water, walking poles, a compass, a GPS or Visorando, a 1:25,000 map, a GPX track and a route description.

To shorten this stage: head directly
- from (6) to (13),
- from (8) to (12),
or skip the Col de Joux (10).

(S) Drinking water at the SNCF station.
(6) Drinking water at the Petches washhouse.
(10) Spring beneath the north-facing hut (signposted and marked).
(8) Borde de Gabriel and (10) Col de Joux hut are open (confirmed on 1 August 2022).

Worth a visit

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.7 / 5
Based on 5 reviews

Reliability of the description
4.8 / 5
Ease of following the route
4.8 / 5
Route interest
4.6 / 5
senzoo97
senzoo97

Overall rating : 4.3 / 5

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

Great hike, 3½ hours up, 2 short hours down. It was a pleasure. When I arrived at the refuge, it had just been cleaned by a family with two children. So there were five of us sleeping there on a Saturday night. Three campers had pitched their tents outside, even though there was room inside. Quite accessible for amateurs.

Machine-translated

Fuxi
Fuxi

Overall rating : 4.7 / 5

Date of your route : Mar 19, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

On 19 March 2025, we completed the 4-hour hike from Mérens to Ax-les-Thermes (from station to station) without going as far as the Col de Joux due to snow (shortening the route from 12 to 8 hours).
There were lots of animal tracks in the snow, but we didn't encounter a single human.
The bench in front of the Gabriel hut is a good place for a picnic in the sunshine.
Beautiful beech forest between 6 and 8.

Machine-translated

Marion1994
Marion1994

Overall rating : 5 / 5

Date of your route : Feb 02, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Hello,
Hike completed on 2 February 2025 with heavy snow cover on the second part but feasible without snowshoes with good mountain boots.
Very pleasant route and very easy to follow.
Be sure to bring very warm clothing.
We did not complete the hike to the end point.
We went to the refuge and back.
It was ideal and magnificent.
Enjoy!

Machine-translated

lemarcheur65
lemarcheur65 ★

Hello Nacho Zurbano

Elevation gain: +1,065 m
Elevation loss: -619 m
The software recommends: difficult.

Machine-translated

Nacho Zurbano
Nacho Zurbano
• Edited:

Overall rating : 4.7 / 5

Date of your route : Sep 08, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A very nice route. However, it is not a difficult hike. There are no technical difficulties or dangerous sections. The slope is quite steep, but that is the only difficulty. The path is very easy to follow and well marked.

I completed the hike in four hours, including a 20-minute break, at a normal pace. For the descent, I took the GR107, with a short detour to the sulphurous springs of Mérens-les-Vals.

Machine-translated

Sébastien 31
Sébastien 31

Overall rating : 5 / 5

Date of your route : Apr 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Hello, this route is highly recommended for reaching an elevation gain of +1000 metres.
We highly recommend stopping for lunch at the top of the Col de Joux (stage 9), which offers exceptional views on both sides.

As with any hike, plan your return journey to Mérens les Vals in advance, especially if the ground is wet (due to rain in previous days) or if it rains on the day (stones, leaves, branches, etc. can make the ground slippery).

Well done to the designer of this hike, which is clearly worth the time spent on it.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.