Stage 4 of 7 · La Haute Traversée de Belledonne
near Le Cohard → La Martinette
Walking time measured on the mapped line (TrailSplits time model, moving time; within 22 % on four in five test legs). Outside Switzerland our walking times often run short of the times route operators publish; treat them as optimistic. Climb measured on the mapped line, on terrain heights.
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Huts along this stage
Mapped in OpenStreetMap within 300 m of the line. TrailSplits has not checked whether they are open, sleep walkers or take bookings: ask each one.
- Refuge de l'Oule· mountain hut· 1,836 m km 3.7 · on the line
- Chalet Hippolyte Chassande-Baroz· unstaffed hut· 1,727 m km 6.8 · on the line
- 1er Chalet de Tigneux· unstaffed hut· 1,680 m km 7.6 · 280 m from the line
- Deuxième chalet de Tigneux· unstaffed hut km 8.1 · on the line
- Chalet de la Fouetterie· unstaffed hut· 1,779 m km 9.2 · 130 m from the line
- Premier chalet de la Grande Valloire· unstaffed hut· 1,837 m km 10.3 · on the line
Route briefing
What comes next
Climbs and water in route order. Not listed does not mean absent: it may not be mapped.
Start
0 m
near Le Cohard
Start
Route geometry · source 2026-04-02
About 0 min in
16.0 km remaining
+1455 m remaining
Climb
0 m
709 m climb
3.7 km at 19.2% average
OpenStreetMap route data · source 2026-04-02
About 0 min in
16.0 km remaining
+1455 m remaining
Water
0 m
Drinking Water
Water
OpenStreetMap · source 2026-04-02
About 0 min in
16.0 km remaining
+1455 m remaining
Water
700 m
Drinking Water
Water
OpenStreetMap · source 2026-04-02
About 20 min in
15.3 km remaining
+1383 m remaining
Water
1.0 km
Drinking Water
Water
OpenStreetMap · source 2026-04-02
About 28 min in
15.0 km remaining
+1312 m remaining
Climb
6.8 km
256 m climb
1.6 km at 15.8% average
OpenStreetMap route data · source 2026-04-02
About 3h 10m in
9.3 km remaining
+434 m remaining
Finish
16.0 km
La Martinette
Finish
Route geometry · source 2026-04-02
About 7h 29m in
0 m remaining
Trail route lab
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Start: near Le Cohard
No nearby transit stop. Consider getting dropped off or using the previous stage's end stop.
Getting Out
La Martinette (bus stop)
619m from trail end · ~8 min walk
Segment Breakdown
Auto-analyzed from the elevation profile. Each segment shows the dominant character for planning your effort.
| Segment | Dist | ↑ / ↓ | Time | Character |
|---|---|---|---|---|
near Le Cohard → km 3.7 (1807m) 1,096–1,807m | 3.7 km | +711m / -0m | 2h 21m | 🔺 Steep Climb |
km 3.7 (1807m) → La Martinette 1,002–1,986m | 12.3 km | +620m / -1344m | 5h 07m | 📉 Descending |
| Total | 16.0 km | +1,455m / -1,440m | 7h 29m |
Pace & Fuel Calculator
Adjust your flat 10K pace to see personalized finish time, calorie burn, and hydration needs.
Terrain Analysis
Surface & Technicality
Gradient describes steepness, not exposure, scrambling, footing or current conditions. Technical difficulty is unknown where no mapped rating is available.
Surface
Surface mapped for the full route in OpenStreetMap.
Surfaces and the hardest grade measured on the stage's mapped line from OpenStreetMap tags.
Current Conditions
Based on 1991–2020 climate averages, the weather on La Haute Traversée de Belledonne Stage 4: near Le Cohard → La Martinette is usually best from June to September. Snow is likely at the high point (1992 m) in December to May.
Weather this week
Loading the forecast for low point (999 m) and high point (1,992 m)…
Weather by month
Typical weather on this stage: at the lowest point (999 m) and the highest point (1,992 m). Select a month to see why it is rated as it is.
| Month | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather | Poor | Poor | Poor | Poor | Poor | Good | Good | Good | Good | Mixed | Poor | Poor |
| High point, day / night | -2°/-8° | -1°/-8° | 3°/-5° | 6°/-2° | 10°/2° | 14°/5° | 17°/7° | 17°/7° | 12°/4° | 8°/1° | 2°/-3° | 0°/-6° |
| Low point, day / night | 6°/-2° | 6°/-3° | 10°/0° | 13°/3° | 18°/7° | 21°/10° | 24°/12° | 24°/13° | 19°/9° | 15°/7° | 9°/2° | 7°/-1° |
| Rain, mm | 119 | 96 | 100 | 96 | 121 | 98 | 78 | 86 | 108 | 122 | 155 | 141 |
| Snow at high point | Likely | Likely | Likely | Likely | Likely | – | – | – | – | Frost | Possible | Likely |
| Daylight | 9 h 06 | 10 h 22 | 11 h 50 | 13 h 27 | 14 h 50 | 15 h 38 | 15 h 21 | 14 h 10 | 12 h 37 | 11 h 03 | 9 h 34 | 8 h 46 |
Source: TerraClimate 1991–2020 monthly averages. Averages for the area at each point’s elevation (4 km grid, corrected for height). Not a forecast or a report of current trail conditions. Snow at the high point is estimated with a simple snowpack model from these temperatures and precipitation, not observed; steep islands and high summits can hold more snow than it shows. Daylight is for the 15th of each month. Hut, transport and park seasons are separate: check them for your dates.
Averages cannot establish current trail conditions. Check recent local reports, the forecast and restrictions before departure. Snow and ice can persist on shaded sections or arrive outside the usual season.
Planning ahead?
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Safety & Bailouts
We do not have a verified emergency exit plan for this route. A nearby settlement, hut or route endpoint is not necessarily reachable or open. Do not leave the trail based on a straight-line distance or compass direction.
Review possible exits against current local information before your trip. In an emergency, contact local rescue services; this page is not live rescue guidance.
Suggested Gear List
Auto-generated based on 16.0 km, 1455m ascent, max altitude 1991.7m, ~7h duration.
- 👟 Trail running shoes / hiking bootsRequired for any trail
- 📱 Phone (charged) + offline mapNavigation & emergency contact
- 💧 3L hydration vestEstimated 3.3L; verify refill availability
- 🍫 Trail mix, bars & sandwichEst. 2292 kcal burn
- 🧴 Sunscreen SPF 50+UV intensifies above 1500m
- 🧢 Sun hat / capExposed alpine terrain
- 🆘 Emergency space blanketCritical for preventing hypothermia if you stop moving
- 🕶️ Sunglasses (cat 3+)Snow & rock glare at altitude
- 🧥 Light rain jacketWeather changes fast in the mountains
- 🔦 Headlamp7h route — plan for delays
- 🩹 Mini first aid kitBlister plasters, tape, antiseptic
- 🥢 Trekking poles16% steep terrain, 1455m+ ascent
- 🧊 Microspikes / light cramponsSnow risk in Jan, Feb, Mar
- 🦵 GaitersKeep snow out of boots
Logistics
This route runs from near Le Cohard to La Martinette (16.0 km by trail). You'll need to arrange transport back to your starting point.
Nearby Points of Interest
🚏 Transit stops along this stage
- 🚌 La Ferrière Village-Écoles km 13.4 · 1.2 km off trail
- 🚌 Camorel km 13.8 · 271m off trail
- 🚌 La Ferrière La Chapelle km 13.8 · 929m off trail
- 🚌 Le Curtillard km 14.1 · 115m off trail
- 🚌 Le Grand Thiervoz km 14.4 · On trail
- 🚌 Fond de France km 15.3 · 350m off trail
- 🚌 Les Millets km 15.8 · 203m off trail
- 🚌 La Martinette km 15.8 · 344m off trail
🛖 Shelters
- Camorel km 13.8 · 273m off trail
- Shelter km 13.8 · 294m off trail
- Les Millets km 15.8 · 195m off trail
- La Martinette km 15.8 · 332m off trail
💧 Water Sources
- Drinking Water 1.5 km off trail
- Drinking Water km 0.7 · 57m off trail
- Drinking Water km 1 · 600m off trail
- Drinking Water km 1.4 · 292m off trail
- Drinking Water km 3.6 · 112m off trail
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