Ascent to the Causse de Blandas from the villages of the Arre Valley

We follow the drovers' road linking Languedoc to Aubrac, still used today by sheep to reach the summer pastures of the Aigoual. We begin by descending into the villages and hamlets of the Arre Valley. The silk industry has left its mark here: old spinning mills and watermills. After a pleasant stroll along the Arre, where trout abound, the going gets tough with the climb up to the Causse de Blandas. Once at the top, there is a radical change of scenery.

Details

n°3839813
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  • Walking
    Activity: Walking
  • ↔
    Distance: 10.96 mi
  • ◔
    Average duration: 6h 30 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: No
  • ↗
    Ascent: + 1,696 ft
  • ↘
    Descent: - 2,995 ft

  • ▲
    Highest point: 3,287 ft
  • ▼
    Lowest point: 728 ft

Description of the walk

Red and white markings

(S) At the car park of the Maison des Cévennes in Puechagut, take the path leading down towards the D 48n. Cross the road, continue down the slope opposite and reach Les Perriers (signpost for the GR® 7 “Le Vigan 8.6 km”). Turn left onto the D 48n and follow it for 150 m.

(1) At the Fork in the road just out of the bend, head down the path on the right (signposted ‘Le Vigan 2 hrs 15 mins’). Pass a ruin. After a few hairpin bends, you’ll reach Pratcoustals (GR® 7 signpost ‘Aulas 2.8 km’).

(2) Take the road on the right for 250 metres. Head downhill to the left along a path. Cross the road at Pratcoustals and continue straight ahead down the path. You’ll reach a crossroads.

(3) At Carnieu (GR® 7 signpost “Aulas 1.5 km”), head down to the left along a barely visible path. Cross a gully. Enter Aulas, cross two roads and reach the Temple.

(4) Turn left onto Rue du Fossé. After the town hall (fountain), head down to the right along Rue du Pont. First turn left then right, and cross the bridge over the Coudoulous.

(5) Continue through the old spinning mills district (GR® 7 signpost “Le Vigan 3.8 km”), head up the Chemin du Vigan on the right and emerge at the junction with the D 48n.

(6) At Les Quatre Chemins (signpost for the GR® 7 “Le Vigan 3.3 km”), head uphill opposite along the D 370 for 100 m. Turn right down the path which climbs briefly, crosses the D 170, passes through a housing estate, then descends to Le Vigan.

(7) Head downhill to the left for 20 m. Continue downhill to the left along the Chemin Haut de Valamont. At the Fork in the road, take the path on the right, cross the Route Neuve, then head downhill opposite along the Chemin de Valamont.

(8) Head downhill to the left into the public gardens. Continue straight ahead along Rue du Lycée. At the secondary school, turn right onto Avenue Jean Jaurès, walk alongside the Parc des Châtaigniers and continue straight ahead along Rue du Valdourbie. After a left-right turn, take Rue de la Carrierasse, cross the bridge over the D 999 and reach a junction (signpost for the GR® 7 “Avèze 2.5 km”).

(9) At Les Calquières, carry on straight ahead. After a right-hand bend, take the path between the houses. Follow the Chemin de la Rivière alongside the River Arre. Cross the D 48s (Route de la Rode). Carry on straight ahead along the road beside the river until you reach the Pont Vieux.

(10) Cross the Arre and, after the bridge (signpost for the GR® 7 “Avèze 0.7 km”), take the D 48s to the right. Pass through Avèze towards Montdardier until you reach the hamlet of Le Moulin.

(11) Turn right onto the Chemin du Moulin and cross the Glèpe. Turn left and walk alongside the mill. Head uphill to the right, then turn left into the woods. After several hairpin bends, you’ll emerge into a meadow.

(12) At the ruins of Aire Ventouse (signpost for the GR® 7 “Montdardier 5.6 km”), continue the climb, skirting the cliffs of the Rocher du Marquis to the east. Cross the edge of the Causse de Blandas and head west

(13) At the Fork in the road, turn right. After a bend to the left, then to the right, you’ll come out onto the Route des Campels.

(14) Turn left onto it. Pass the sheepfold on your right, continue straight ahead along the road heading south and walk alongside a quarry.

(15) After a gentle descent, you’ll reach the Combe de Ragnas quarry (signpost for the GR® 7 “Montdardier 2.2 km”).

(16) Continue along the Route des Campels heading south-east. At the first houses, you’ll come out onto the D 113a (Route de Navas) and enter Montdardier (E).

Waypoints

  1. S : mi 0 - alt. 3,287 ft - Puechagut – Maison des Cévennes
  2. 1 : mi 0.47 - alt. 2,972 ft - D48n Road – Fork in the road
  3. 2 : mi 1.64 - alt. 2,251 ft - Pratcoustals
  4. 3 : mi 2.48 - alt. 1,663 ft - Carnieu
  5. 4 : mi 3.16 - alt. 1,102 ft - Aulas – Temple
  6. 5 : mi 3.31 - alt. 1,073 ft - Coudoulous (rivière)
  7. 6 : mi 3.56 - alt. 1,211 ft - Les 4 Chemins
  8. 7 : mi 4.34 - alt. 1,125 ft - Le Vigan
  9. 8 : mi 4.81 - alt. 843 ft - Le Vigan – Public garden
  10. 9 : mi 5.3 - alt. 738 ft - Le Vigan – Les Calquières. Follow the - Arre (rivière)
  11. 10 : mi 6.37 - alt. 771 ft - Avèze – Pont Vieux Municipal Campsite
  12. 11 : mi 6.98 - alt. 830 ft - Avèze – Le Moulin
  13. 12 : mi 7.71 - alt. 1,499 ft - Aire Ventouse – Ruins
  14. 13 : mi 8.36 - alt. 2,054 ft - Fork in the road
  15. 14 : mi 8.63 - alt. 2,195 ft - Route des Campels
  16. 15 : mi 9.31 - alt. 2,159 ft - Quarry
  17. 16 : mi 9.84 - alt. 1,991 ft - Combe de Ragnas – Quarry
  18. E : mi 10.96 - alt. 1,995 ft - Église Sanint-Martin (Montdardier)

Notes

Hike undertaken by the author on 27 August 2020.

This route follows the GR® 7. A description of the route can be found in the TopoGuides published by the French Hiking Federation:
- ‘Crossing the Massif Central through the Parks: from La Bastide-Puylaurent to Castelnaudary’, reference 7002,
- ‘The Saint-Guilhem-le-Désert Trail’, reference 4834,
- ‘Crossing the Haut-Languedoc’, reference 716.

The climb up to the Causse de Blandas on leaving Avèze is steep between (11) and (12).

Puéchagut – Maison des Cévennes (S): former forest ranger’s house, water, guest rooms, refuge, restaurant.

Pratcoustals (2): restaurants.

Aulas:
- restaurant, water between (4) and (5),
- guest rooms between (5) and (6).

Le Vigan: hotels, cafés, restaurants, guesthouses, all shops between (7) and (9).

Avèze:
- restaurants in (10),
- water, hotel, café, restaurant between (10) and (11).

Montdardier (E): water, guesthouses, stopover lodge, restaurant, grocery shop.

Worth a visit

Panoramic views of the villages in the Arre Valley between (1) and (7).

Aulas (5): Former spinning mill.

Avèze:
- Montclam Castle between (10) and (11),
- old mill shortly after (11).

Blandas Plateau from (13) to (E): immerse yourself in the world of the plateau. Vegetation consisting of pine trees, boxwood and meadows. Panoramic views over the Arre Valley, the Aigoual National Forest and Mont Ventoux.

Montdardier:
- Quarries at (15) and (16),
- views of the Château de (15) at (E).

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

5 / 5
Based on 1 review

Reliability of the description
5 / 5
Ease of following the route
5 / 5
Route interest
5 / 5
kzmrjst
kzmrjst

Overall rating : 5 / 5

Date of your route : Oct 02, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

beautiful scenery on the way to St Guilhem

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