Stage 5 of 7 · La Haute Traversée de Belledonne
La Martinette → near Aire de bivouac du Pas de la Coche
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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.
- Cabane du Lac Carré· unstaffed hut km 6.7 · on the line
- Refuge Jean-Luc Coutaz-Replan· unstaffed hut km 6.9 · 270 m from the line
- Refuge des 7 Laux· mountain hut· 2,135 m km 7.4 · on the line
- Refuge d'Aiguebelle· mountain hut· 1,740 m km 17.3 · 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
La Martinette
Start
Route geometry · source 2026-04-02
About 0 min in
19.6 km remaining
+2037 m remaining
Climb
0 m
1040 m climb
7.3 km at 14.3% average
OpenStreetMap route data · source 2026-04-02
About 0 min in
19.6 km remaining
+2037 m remaining
Water
200 m
Drinking Water
Water
OpenStreetMap · source 2026-04-02
About 5 min in
19.4 km remaining
+2027 m remaining
Water
200 m
Drinking Water
Water
OpenStreetMap · source 2026-04-02
About 5 min in
19.4 km remaining
+2027 m remaining
Climb
10.3 km
339 m climb
1.5 km at 22.9% average
OpenStreetMap route data · source 2026-04-02
About 4h 13m in
9.3 km remaining
+872 m remaining
Climb
17.5 km
362 m climb
2.1 km at 17.6% average
OpenStreetMap route data · source 2026-04-02
About 7h 10m in
2.1 km remaining
+374 m remaining
Finish
19.6 km
near Aire de bivouac du Pas de la Coche
Finish
Route geometry · source 2026-04-02
About 8h 01m in
0 m remaining
Trail route lab
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Getting Here
La Martinette (bus stop)
619m from trailhead · ~8 min walk
End: near Aire de bivouac du Pas de la Coche
No nearby transit stop at the end. Check the next stage's start stop.
Segment Breakdown
Auto-analyzed from the elevation profile. Each segment shows the dominant character for planning your effort.
| Segment | Dist | ↑ / ↓ | Time | Character |
|---|---|---|---|---|
La Martinette → km 11.8 (2529m) 1,091–2,529m | 11.8 km | +1473m / -35m | 5h 02m | 🔺 Steep Climb |
km 11.8 (2529m) → km 14.7 (2248m) 2,103–2,529m | 2.9 km | +145m / -426m | 1h 05m | 🔻 Steep Descent |
km 14.7 (2248m) → km 17.5 (1737m) 1,737–2,248m | 2.7 km | +0m / -512m | 50 min | 🔻 Steep Descent |
km 17.5 (1737m) → near Aire de bivouac du Pas de la Coche 1,737–2,100m | 2.1 km | +364m / -0m | 1h 03m | 🔺 Steep Climb |
| Total | 19.6 km | +2,037m / -1,016m | 8h 01m |
Pace & Fuel Calculator
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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
Estimated for the full route from the 58% with mapped surface data in OpenStreetMap.
Current Conditions
Based on 1991–2020 climate averages, the weather on La Haute Traversée de Belledonne Stage 5: La Martinette → near Aire de bivouac du Pas de la Coche is usually best from July to September. Snow is likely at the high point (2549 m) in November to June.
Weather this week
Loading the forecast for low point (1,084 m) and high point (2,549 m)…
Weather by month
Typical weather on this stage: at the lowest point (1,084 m) and the highest point (2,549 m). Select a month to see why it is rated as it is.
| Month | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather | Poor | Poor | Poor | Poor | Poor | Poor | Good | Good | Good | Mixed | Poor | Poor |
| High point, day / night | -4°/-10° | -4°/-10° | -1°/-8° | 2°/-5° | 7°/-1° | 11°/2° | 14°/5° | 14°/6° | 9°/2° | 5°/0° | 0°/-5° | -2°/-8° |
| Low point, day / night | 5°/-3° | 5°/-3° | 9°/0° | 12°/2° | 17°/7° | 21°/10° | 23°/11° | 23°/12° | 18°/9° | 14°/6° | 8°/2° | 6°/-1° |
| Rain, mm | 139 | 107 | 114 | 113 | 135 | 99 | 78 | 90 | 111 | 136 | 177 | 161 |
| Snow at high point | Likely | Likely | Likely | Likely | Likely | Likely | – | – | – | Possible | Likely | Likely |
| Daylight | 9 h 06 | 10 h 23 | 11 h 50 | 13 h 27 | 14 h 50 | 15 h 37 | 15 h 20 | 14 h 09 | 12 h 37 | 11 h 03 | 9 h 35 | 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 19.6 km, 2037m ascent, max altitude 2549.1m, ~8h duration.
- 👟 Trail running shoes / hiking bootsRequired for any trail
- 📱 Phone (charged) + offline mapNavigation & emergency contact
- 💧 3L hydration vestEstimated 4.0L; verify refill availability
- 🍫 Trail mix, bars & sandwichEst. 2807 kcal burn
- 🧴 Sunscreen SPF 50+UV intensifies above 2000m
- 🧢 Sun hat / capExposed alpine terrain
- 🧥 Windbreaker / shell jacketSummit at 2549.1m — wind chill
- 🆘 Emergency space blanketCritical if injured at altitude
- 🕶️ Sunglasses (cat 3+)Snow & rock glare at altitude
- 🧤 Warm mid-layer (fleece)Temps drop ~6°C per 1000m
- 🔦 Headlamp8h route — plan for delays
- 🩹 Mini first aid kitBlister plasters, tape, antiseptic
- 🥢 Trekking poles27% steep terrain, 2037m+ ascent
- 🧊 Microspikes / light cramponsSnow risk in Jan, Feb, Mar
- 🦵 GaitersKeep snow out of boots
Logistics
This route runs from La Martinette to near Aire de bivouac du Pas de la Coche (19.6 km by trail). You'll need to arrange transport back to your starting point.
Nearby Points of Interest
🚏 Transit stops along this stage
- 🚌 Les Millets km 0.2 · 203m off trail
- 🚌 La Martinette km 0.2 · 344m off trail
- 🚌 Fond de France km 0.2 · 533m off trail
- 🚌 Le Grand Thiervoz km 0.2 · 1.1 km off trail
- 🚌 Le Curtillard km 0.2 · 1.4 km off trail
- 🚌 Le Pleynet km 4 · 1.1 km off trail
- 🚏 Lac km 17.3 · 646m off trail
🛖 Shelters
- Camorel km 0.2 · 2.0 km off trail
- Shelter km 0.2 · 2.0 km off trail
- Les Millets km 0.2 · 195m off trail
- La Martinette km 0.2 · 332m off trail
- Shelter km 4 · 1.2 km off trail
💧 Water Sources
- Drinking Water km 0.2 · 542m off trail
- Drinking Water km 0.2 · 475m off trail
- Drinking Water km 0.2 · 344m off trail
- Drinking Water km 0.2 · 276m off trail
- Drinking Water km 0.5 · 2.6 km off trail
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