Country:
City:
From Briançon, take the D902 towards the Col de l’Izoard as far as Cervières. Turn left onto the D89T or Route des Fonts (follow the signs; pass in front of the church). This old track is now passable by motor vehicles and tarmac-surfaced, but remains off-limits to campervans. After passing the old farms at La Chau and rounding a left-hand bend, park about 300 metres from the start of the long straight stretch of the Plaine du Bourget in one of the spaces on the right-hand side of the road. The Combe du Lasseron forms a pass that is clearly visible from the road, bounded on the left by the Turge de Peyron and on the right by the Lasseron. You should position yourself so that you are aligned with the right-hand edge of the valley.
(S/E) From your parking spot, head towards La Cerveyrette and wade across the river (unless it’s dry, in which case you’ll be walking barefoot in the water – bring a terry towel). Follow the river and the base of the scree slope east-southeast until you spot the ascending path and the first cairns. This path lies in line with the left-hand edge of the pass that you can see above you.
(1) Set off along this well-marked path and do not stray from it. To ensure you stay on course, locate the Blue ski touring route on the IGN map. Climb steeply up the south-south-west scree slope before emerging into the mountain pastures. At the entrance to the valley (where the slope levels out), continue in the same direction towards the Col du Lasseron until you are directly below the Crête de la Charvie.
(2) Begin a right-hand turn (leaving the Blue route on the IGN map here) approximately 200m before the pass (at an elevation of approximately 2,418m) and head west-south-west to reach the peak’s southern ridge. Climb up the ridge and, after passing a gap at an altitude of 2,478 m, you will come to the first cairn, the starting point of the summit path.
(3) Set off on a north-north-westerly traverse along the eastern flank, whilst staying below the southern saddle of Le Lasseron. Follow it to the summit bastion marked by a cross (Croix de Sainte-Rose).
(4) Return along the same route you took on the way up.
the chamois were there as expected (the flies too, even though they weren't expected), and the view from the summit is incredible. Crossing the river-footbath is quite fun, but in 2024, with heavy rains and late snow, the marshy area bordering it on both sides is completely flooded and a bit difficult to cross. But that's quickly forgotten. 
Visorando Member
Easy 
Difficult 
