From le Pleynet, climb the ski trail to the combe du Pra. Climb the bowl to the south to the col du Pra via the easiest couloir. The cime de la Jasse is 50 meters to the west.

As I had until the early afternoon I decided to load up my old mountain bike and ride up to the trailhead at 1230 meters just behind the house. About 12km of riding but 1000m of climbing.

Snow from the col although it had large suncups. No refreeze below 2500 meters but skiable below. Lots of purges on the slopes below the Aiguille du Gd. fond.

Climb the combe d'Arpire to the south until to reach the col then follow the short ridge to right (west) to the summit.

Basically pretty much all the between the pistes is skiable at le Grand Serre, it is one big off piste domain. We started with the long Vallons run which is a bit like an itinerary.

From the ski resort of l'alpe du Grand Serre (la Bache) follow a trail to les Desserts behind the Grizzli buildings.

From the end of the road (Areches, la Chornais) follow a track which crosses a red ski run then zig-zags into the woods.

From the town hall in les Pres take a metalled road through the village direction Croix de l'Alpe. After 100 m by a fire hydrant and reservoir follow a small path to the left (NW) past a house.

From the Col du Coq parking 150 meters before the col itself climb the path to the Col des Ayes then take a zig-zag path below the cliffs of the Dent de Crolles.

ClimbMont Rachais is a classic for the Grenoblois. I’ve done Mont-Jalla -> Bastille years ago but Mont Rachais means you descend from the very summit of the mountain behind the Bastille.