At the southern crossroads of Briançon (on the Route des Grandes Alpes between the petrol station and the ski lift access point), take the D35 towards Puy-Saint-André and then Puy Chalvin. The road turns into a track. Head to the hamlet of Les Combes, pass through it, then park 1 km further on, in the car park at the end of the track.
(S/E) Take the lane continuing from the track, then head for the junction at a hairpin bend (barrier, sign).
Leave the lane, head up to the left, and after the picnic area (benches, tables), follow the lane to the right until you come to a sign 300m further on.
(1) At the sign, leave the Lac des Partias route on your right and take the left-hand path towards the Col de la Trancoulette.
The well-marked path climbs through the larch trees and emerges to the west into a valley. It curves sharply to the left before heading south towards the pass.
Follow a winding ascent in this direction to reach the Col de la Trancoulette.
(2) Take the path heading off on a horizontal traverse to the right (south-west). You will reach two small lakes.
The path bends very slightly to the right (west-south-west) into the Peyre du Fey valley.
Climb up through the mountain pasture and then, following the cairns, reach the Col de Vallouise or Col de la Salava, marked by a larch sign.
(3) After a moment to take in the view of the Écrins, turn back and head up to the left towards the north-east.
In this direction, follow a path marked in yellow (markings on rocks).
Follow this path up through the scree, cross a rocky ridge, reach a flat area, then continue the ascent to pass a few gentle slopes.
Climb the final grassy slopes of the hill until you reach the vast summit area, topped by a cairn and a radio relay station.
(4) Follow the same route back to the car park (S/E).