Mont Vorassay - Normal route from Bionnassay
From the parking lot, start towards the east and traverse the Bettières and Chapiot chalets, following the electric line. At Planet leave the electric line and continue 500 m towards the east until the steeper slope which makes it possible to reach Are Chalet to the SE, then the scoop to the south of this chalet. Go up it 300 meters and cross the moraine on the right bank of the Bionassay glacier via gaps in the forest. Take foot on the glacier (around 1850 m) and traverse it towards the west. Go up the left bank moraine and descend on Combe des Juments (near the ruins of the Tricot chalets, generally invisible under the snow). Climb 1200 meters (towards the southwest) up the gentle slope of Combe de Tricot, until Col de Tricot. Descent: By the same route. Total time span: 5 to 6 hours
Variants: -Climb via Le Champel: Parking lot before the village. Traverse the village and go towards the east, for 3 km on the road which crosses Ormoy, La Pierre and Chalet du Chalère. At 1450 m head SE in the forest for 600 m up to approximately 1650 m, to the foot of an ice fall. Skirt the wall towards the east then to go up it (taking off your skis) to the south by sidestepping (crampons useful). After some zigzags, the path traverses the slope towards the SW until the ruins of the Tricot chalets where you meet the normal route. - Take the Houches ski lifts: from the summit of the Bellevue tram (1801 m) it is possible to reach Planet via the southern slopes. -Climb to Mont Vorassay: in good snow conditions it is possible to climb Mont Vorassay (2299 m) to the northwest of the pass and descend its eastern face. -Traverse: By taking a shuttle in the morning, it is possible to descend via the southwest corridor of the pass. 500 m in S3 to reach Miage chalets (risks of sluffs coming from the lower point of Tricot). Then take the road which goes up slightly then descends to the Gruvaz parking lot, via Maison Neuve and Le Chosal.
Route involving several small ascents-descents.
No particular difficulties. The sidestepping section (after Champel) is often icy and requires the use of crampons.
The Combe de Tricot faces NE, but you cross southwestern slopes, exposed to avalanches, to reach the Are chalet or if you traverse this route.
Access: Saint-Gervais > Bionnay > Bionnassay > Le Crozat. Take D902 to get to the Crozat parking lot, then 3 km south of Saint-Gervais (in Bionnay) take the small road for Bionnassay (snow equipment often useful) until it ends (Crozat parking lot).
Accommodation: Numerous accommodations and restaurants of all categories in Saint-Gervais or Contamines. Small inn in Bionassay.
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