Plan de l'Au

Refuge Plan de l'Au sits at 2,050m on the eastern flank of Mont Blanc massif, above the Vallée de Montjoie near Saint-Gervais. Access is via the GR5 or direct paths from either Nanterie (1h 45min) or Contamines-Montjoie (3h 30min). The hut serves as a logical intermediate stop on traverses toward the Goûter or for walkers linking valleys without summiting. Summer hiking is straightforward; winter access depends on snow and avalanche conditions in the approach ravines.
The refuge is a working mountain hut managed by FFCAM, offering around 60 beds in dormitory format. Meals are available (book dinner ahead in peak season), and water comes from the spring nearby. The kitchen facilities are basic—this is a functional Alpine hut, not a hotel. Opening runs typically mid-June through September, depending on snow melt and staffing. Check current opening dates with the guardian before planning an early-season trip.
Book directly with the refuge 2–3 weeks ahead for July and August. The hut fills on weekends and during school holidays. Email or phone the guardian for availability and to arrange meals. Expect to carry a sleeping bag (refuges provide blankets only). Mobile reception is unreliable; contact the hut or Contamines tourist office if you cannot reach them directly.