Warning:
Information on how to reach the starting point, as well as details regarding difficulty, alternative routes and precautions to take, is summarised in the ‘Practical Information’ and ‘During the Hike’ sections. All hikes require preparation, and this hike requires knowledge of the cardinal directions.
(S/E) From the hairpin bend at Notre-Dame de Bon Rencontre, take the GR® 57 which heads north-west then north. Forestry machinery has recently (2020) devastated the path, making it difficult to follow: stay in the micro-depression until you emerge from the debris of branches. Continue along the path, generally heading north, to reach, after a few hairpin bends, a flat clearing containing a ruined dwelling.
(1) A sign names the spot Bois de Saint-Hippolyte and points to the Chalet des Thures on the left. Continue in this direction, still on theGR®, heading north-north-west. The rock becomes more prominent and the path crosses some scree before winding through several bends. When the path reaches a flat area and heads west into a clearing, take a short detour (optional) southwards and back to walk alongside the ruins of Tête Noire on the right (as you head south) and reach a small promontory offering a view of the valley (see track).
Return to the main path, which leaves the wooded area after a circular route to the east and continues northwards. After two ruins on the right, it reaches a junction.
There are no yellow markings apart from a few cairns.
(2) At the ‘Ruines de Tête Noire’ sign, leave theGR®® and head towards the Aiguille Rouge, generally northwards, along a ridge.
(3) Pass the cairns on the left and continue northwards on the path, which straightens out. A series of hairpin bends marked by cairns leads to the summit of the Aiguille Rouge.
(4) From the summit, retrace your steps to reach the flat section of the ridge at the cairn seen earlier.
(3) Turn right to descend straight down the west-facing slope, then head north-north-west along the first path leading down through the scree of La Scia towards the Col des Thures. Lac Chavillon soon comes into view.
(5) Once north of Lac Chavillon, leave the path and follow a track up to the west-south-west, alongside the Riou des Thures. A few cairns mark the route. This leads to a flat area from which several boundary markers are visible to the south. These are the old boundaries between Savoie and Dauphiné. Head south towards these markers to reach Lac Bellety.
(6) Walk round the lake along one of its shores, still heading south, then take one of the many livestock tracks to descend south-east beneath the Serre des Creuzots. Cross a ravined stream above the Cabane des Thures, clearly visible below, and reach the ravined edge of the ochre-coloured Thures valley. Descend the ridge of this valley, to the east, to pass near the hut and join theGR®® below.
(7) A sign on theGR®® indicates the direction of Névache: be careful not to head back up towards the ruins of Tête Noire; take the right-hand branch of the path. It runs alongside the Combe des Thures on the right and reaches a series of switchbacks that plunge into the wooded slope, generally heading south-south-west.
(8) Just before crossing a ravine, with a fairy chimney in view (see reference photo), a sign indicates a secondary path leading to Névache via the “left bank”. Follow this path, which descends due south. The detours in my route allow you to observe a few other fairy chimneys and tuff formations that have given their name to the Combe des Thures.
The path runs alongside the Torrent de Roubion and emerges from the larch trees at Cros de Roubion. Cross the meadows dotted with mounds of stones piled up by farmers to clear the fields and turn left (east) onto a track that joins the D1t road.
(9) Cross the D1t and head down towards the edge of the trees, to the south-east, to cross the D994g at Glutier de Roubion. A track runs alongside the Clarée and climbs back up to the road at a narrowing. Shortly after this, in the middle of the straight stretch of road, a path branches off to the left (car park spaces).
(10) Take this path north-west to climb up a ravine to the north, then cross it and, after a few hairpin bends, arrive at the Notre-Dame de Bon Rencontre wayside shrine (S/E).