Via Alpina Stage 77: Anzeinde - Col du Demècre
HARD (4.7/10)Les Garettes → Vallon de Nant
A demanding mountain route — the Via Alpina Stage 77: Anzeinde - Col du Demècre packs 30.7 km and 1,580 m of climbing into a 10h 37min day. Running from Les Garettes to Vallon de Nant, the trail spans an elevation range of 1,253 m to 2,575 m. The 51 m/km climb ratio means sustained effort on the ascents.
The route breaks into 10 segments. The toughest stretch is the 2.1 km from Grande Dent de Morcles to Roc Champion, climbing 267 m — an unrelenting 127 m/km grade.
About 67% of the trail is runnable, but the remaining steep sections will push most people into power-hiking mode. Some pitches hit 60% gradient, so trekking poles are strongly recommended.
Budget roughly 6,818 kcal of energy expenditure and 6.4 L of water. Aim for 60–90 g of carbs per hour to avoid bonking on the longer climbs. No confirmed water sources along the route — carry all the water you need.
Alpine route. Usually accessible from June to October. Early and late season may have snow patches above 2200m. Expect snow patches above 2,375 m into early summer.
Elevation Profile
Route Map
Trail Splits
Waypoint-to-waypoint breakdown with estimated hiking times (Naismith's Rule).
| Segment | Dist | ↑ Ascent | ↓ Descent | Time | Cum. km |
|---|---|---|---|---|---|
| 📍 Les Garettes → Cabane du Demècre | 0.0 km | +0m | -0m | 0 min | 0.0 |
| 🏠 Cabane du Demècre → Lui Crève | 1.0 km | +0m | -234m | 24 min | 1.0 |
| ⛰️ Lui Crève → Six Tremble | 1.2 km | +129m | -73m | 30 min | 2.2 |
| ⛰️ Six Tremble → Grande Dent de Morcles | 1.7 km | +193m | -128m | 45 min | 3.9 |
| ⛰️ Grande Dent de Morcles → Roc Champion | 2.1 km | +267m | -99m | 56 min | 6.0 |
| ⛰️ Roc Champion → Tête de l'Ortière | 4.5 km | +171m | -1075m | 2h 04m | 10.5 |
| ⛰️ Tête de l'Ortière → Auberge et Restaurant du Pont de Nant | 2.9 km | +7m | -253m | 47 min | 13.3 |
| 🏠 Auberge et Restaurant du Pont de Nant → Lion d'Argentine | 3.5 km | +406m | -4m | 1h 23m | 16.9 |
| ⛰️ Lion d'Argentine → Gros Sex | 1.2 km | +145m | -0m | 29 min | 18.1 |
| ⛰️ Gros Sex → Vallon de Nant | 10.9 km | +264m | -361m | 2h 54m | 29.0 |
| Total | 30.7 km | +1,580m | -2,226m | 10h 37m | 30.7 |
Terrain Analysis
Nutrition & Hydration
Estimates based on metabolic equivalent (MET) for hiking with significant elevation gain. Actual needs vary by body weight, fitness, weather, and pack weight.
Pace Estimates
Based on Naismith's Rule adjusted for distance, elevation, and technical difficulty. Click a pace to update split times above.
Current Conditions
Best Season
Alpine route. Usually accessible from June to October. Early and late season may have snow patches above 2200m.
Logistics
💧 Water Advisory
No confirmed water sources along this 31 km route. Carry all water needed — plan for 6.4 L minimum.
Nearby Points of Interest
⛰️ Peaks
- Tête de la Croix 201m
- Roc Champion 311m · km 6
- Le Diabley 342m · km 0.2
- Pointe de Bésery 396m · km 0.5
- Pointe des Martinets 402m · km 6.6
🏠 Mountain Huts
- Cabane du Demècre 42m
- Auberge et Restaurant du Pont de Nant 188m · km 13.4
📍 Nearby Places
- Les Larzettes 223m
- Trou à l'Ours 430m
Route Details
- Network
- International Trail Network
- Sport
- hiking
- Start
- Les Garettes
- End
- Vallon de Nant
- Operator
- via-alpina.org
- Start Coordinates
- 46.17395, 7.08173
- OpenStreetMap
- View on OSM →
- Official Website
- Visit →
Similar Trails
Plan this route
This hard route demands careful planning. Use the TrailSplits planner to set waypoints at key mountain huts, get turn-by-turn navigation, and export to your GPS.