Location ✦ Aston Valley
Region ✦ Ariège
Country ✦ France
Direction ✦ North / East
Max altitude ✦ 2785m
Distance ✦ 12.2km
Dénivelé ✦ 1160m
Difficulty ✦ E3 / T4 / R4
Duration ✦ 6h to 7h
Interest ✦ ★★
Access to the place
Map & topo
Hiking to the start Refuge du Rhule, 2085m, 1h30
Leave the parking lot to the south and follow path N°26 towards the Rhule refuge and N°27 towards the Fontargentes ponds. Climb a first level, then leave the path to the Fontargentes ponds and fork left towards the refuge (sign). After a grassy plateau and a hut, the well-trodden path climbs steeply up the slope and into the valley floor. You can soon see the refuge in the distance, sitting on an upper plateau at the foot of the Rhule. The ascent continues, but is not too steep, to reach the refuge, the starting point for the round trip. You can leave some weight here if you don't want to return via the Isards ridge and the Rieutort valley.
Course 1h45 à 2h15
The route from the refuge skirts the Rhule massif to the north, then climbs its north or northeast flank to the summit ridge, which is double (2785m and 2783m). Because of this exposure, the presence of névé snow can make the final section complicated or even impossible without equipment.
Section 1: Col des Calamettes (2318m, 30')
Take the signposted path to the Col des Calamettes. It hardly rises at all to reach the col, where you have to head due south towards the access corridor to the summit. There is a more direct path (in turquoise), but it's not very visible. It follows the bottom of the valley before joining the itinerary from the Col des Calmettes. To take it, turn right at a cairn marked with the GR in the shape of a characteristic little pyramid (5' after the refuge, see 3rd photo in the gallery).
Part 2: Join the summit ridge (2740m, 1h)
From the col, follow the cairned path due south, cross a scree slope and climb in increments until you reach the foot of a steep gispet couloir offering natural access to the summit. The path quickly climbs in tight twists and turns, and at the top, exit to the right onto a small airy shoulder overlooking the northern flanks of the massif.
From here, follow the cairn-marked path as it crosses to the west, then climbs cunningly up the rocky face with a few hand-holds. You reach a small col on the summit ridge at 2740m. The view is already splendid.
Part 3: Pic du Rhule (2785m, 20')
This is the best part, but also the most aerial. Follow the ridge due west, climbing over large boulders or ducking left or right. No particular difficulty, but a few exposed sections need to be negotiated with care. You soon reach the South summit, which offers superb views of the Albe and Couart ponds. A short descent takes you to the 2nd summit, further north at 2085m, with a different view to the north-west.
The same route as the outward journey. Allow at least 1 hour to get back to the refuge, then another good hour for the parking lot. The views over the Aston valley below the refuge are extraordinary.