The walk starts near the Chalet-Hôtel du Buet and Gare du Buet, on the road leading from Chamonix to the Col de la Forclaz.
In the first part of the walk, follow the signposts indicating the direction of the Refuge de la Pierre à Bérard.
(S/E) Head west towards the chalets of La Poya.
(1) Continue slightly to the right towards the Bérard waterfall. Carry on westwards, keeping high above the stream. Let the Tré les Eaux path branch off sharply to the right and join the Eau de Bérard stream.
(2) Take the footbridge and cross the torrent. From here, the path remains on the left bank of the Eau de Bérard. Pass through a wooded area and follow a few hairpin bends. On emerging from the forest, the slope levels out. Continue south-west.
(3) At a fork in the road, take the path on the right. N.B. The two paths rejoin further on, but the one on the right is the main route. The path continues in a south-westerly direction. When the slope becomes steeper again, the path winds its way up once more to reach the Refuge de la Pierre à Bérard, nestled against a huge rock.
(4) From the refuge, take a path to the right (north-west) which climbs steeply and efficiently. After several hairpin bends, you’ll emerge into an area of large boulders, where the path is barely marked, if at all. Follow the cairns carefully, along with some old red markings (presumably faded) and recent vertical yellow markers.
(5) Directly below the Col de Salenton, leave the path leading to the pass on your left and veer to the right. Heading north, follow the base of the Aiguille de Salenton. Turn left and emerge onto a flat area where a snowfield often persists in summer. Continue north-west to the foot of a steep slope rising to the north.
(6) Turn right and climb up through the scree. The slope is very steep and the path makes numerous short switchbacks. You will emerge onto the Arête de la Mortine near some radio masts.
(7) Follow the ridge, where the gradient is more moderate. Pass the Pictet shelter (a very basic stone shelter) and continue north-east to the summit.
(8) Descend by retracing your steps along the same path as on the way up to the Gare du Buet (S/E).
