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Le Laisonnay via Col de la Grande Casse.


Vanoise Massif

A superb finale to the Vanoise circuit under the Grande Casse North Face.

Ski Touring Difficult

13 km
696 m
1.7 km
5-6 hrs
Low Point
1.6 km
High Point
3.1 km
Le Laisonnay via Col de la Grande Casse. Map

The final day of the Vanoise circuit travels through some of the most stunning and wild high mountain scenery the Vanoise has to offer. One of the highlights has to be skiing under the magnificent Grande Casse north face. A stable snowpack, a well filled in glacier and reasonable visibility are needed. The final ski towards Champagny is down a steep sided valley which, if it has not stripped of snow, will need careful consideration with regard to avalanche hazard and the start time for your day.


Leave the hut and ski down to the east side of Lac long where you can put your skins on. From here skin towards the moraine and ascend this to gain the Glacier de la Grande Casse. Choose the easiest angled terrain on the moraine, you may have to carry your skis if it has stripped of snow.

Follow the Glacier de la Grande Casse towards the Col where it starts to steepen. Further up it may be easier to transition to crampons and carry your skis. The col is narrow with towering rock walls either side and is very unique and wild place ! After transitioning the ski down starts with traversing along a glacial bench. Don’t forget to look up at the Grand Casse north face as you ski down but also be aware you are skiing parallel to any crevasses ! Chose your line and don’t drop too far down. You will turn to the north and leave the glacier here and if the timing is right there could be some excellent spring snow. Enjoy the excellent fall line skiing to the flattening near the Refuge de la Glière. Pop your skins on for a short distance before transitioning and skiing down the road to Le Laisonnay. If you're doing this tour earlier in the winter the road may be shut, in which case take the ski de fond tracks towards Champagny le Haut.

Finally, after five epic days, enjoy a well earned drink and some food in one of the restaurants at the road end.



Serious gradient of 30-38 degrees where a real risk of slipping exists.

Medium Exposure (E2)

2 out of 4

As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.


3 out of 4

Little chance of being seen or helped in case of an accident.

Best time to visit

between March and May


  • Bowl
  • Face
  • Alpine
  • Cliffs
  • Single Descent
  • Ski Mountaineering

Equipment required

  • Rope
  • Skins
  • Ice axe
  • Crampons
  • Glacier kit

Similar routes nearby

Guidebooks in this area