Stage 4 of 7 · La Haute Traversée de Belledonne

near Le Cohard → La Martinette

Distance
16.0 km
Ascent
+1,372 m
Descent
-1,383 m
Est. Time
6h 32m
Altitude
999–1,992 m
Type
point-to-point
🏔️ Mountainous

Use this route

Explore this stage

See the route, inspect its climbing, or preview the stage over real terrain.

Loading topographic map…
1,200m1,400m1,600m1,800m2,000m05 km10 km15 km1,986m1,002m
Flat (<5%) Gentle (5–10%) Moderate (10–15%) Steep (15–25%) Very steep (>25%)

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.

14 route events
  1. Start

    0 m

    near Le Cohard

    Start

    Route geometry · source 2026-04-02

    About 0 min in

    16.0 km remaining

    +1372 m remaining

  2. 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

    +1372 m remaining

  3. Water

    0 m

    Drinking Water

    Water

    OpenStreetMap · source 2026-04-02

    About 0 min in

    16.0 km remaining

    +1372 m remaining

  4. Water

    700 m

    Drinking Water

    Water

    OpenStreetMap · source 2026-04-02

    About 17 min in

    15.3 km remaining

    +1305 m remaining

  5. Water

    1.0 km

    Drinking Water

    Water

    OpenStreetMap · source 2026-04-02

    About 25 min in

    15.0 km remaining

    +1237 m remaining

  6. Climb

    6.8 km

    256 m climb

    1.6 km at 15.8% average

    OpenStreetMap route data · source 2026-04-02

    About 2h 46m in

    9.3 km remaining

    +409 m remaining

  7. Finish

    16.0 km

    La Martinette

    Finish

    Route geometry · source 2026-04-02

    About 6h 33m in

    0 m remaining

Trail route lab

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16.0 km Distance1,372 m Climb6h 32m Est. time1,992 m High pointHARD Difficulty
Customize in Planner
📍

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.

SegmentDist↑ / ↓TimeCharacter
near Le Cohard → km 3.7 (1807m)
1,096–1,807m
3.7 km+711m / -0m2h 03m🔺 Steep Climb
km 3.7 (1807m) → La Martinette
1,002–1,986m
12.3 km+620m / -1344m4h 29m📉 Descending
Total16.0 km+1,372m / -1,383m6h 32m

Pace & Fuel Calculator

Adjust your flat 10K pace to see personalized finish time, calorie burn, and hydration needs.

7:00 /km
4:00 /km (elite) 12:00 /km (leisure)
Fast Hiker / Jogger
Est. Finish Time
4h 08m
Calories
1,956 kcal
Water Needed
2.8 L
Effort Distance
36.7 km
flat-equivalent
🍫 Recommended: ~45g carbs/hr (187g total) Electrolyte needs vary with conditions and sweat losses; no individual sodium target is estimated.

Terrain Analysis

Lower-gradient terrain
Unknown
Gradient coverage unavailable
% of route below 15% gradient
Climb Ratio
86 m/km
Very steep profile
↑ 1,372m ↓ 1,383m

Surface & Technicality

Gradient breakdown
Low gradient (33%) Easy Grade (20%) Moderate Climb (31%) Steep (16%)

Gradient describes steepness, not exposure, scrambling, footing or current conditions. Technical difficulty is unknown where no mapped rating is available.

Surface

≈43% paved · ≈57% unpaved
Mixed paved & unpaved

Estimated for the full route from the 58% with mapped surface data in OpenStreetMap.

Current Conditions

Loading live weather...

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.

Monthly climate averages and daylight
Month
WeatherPoorPoorPoorPoorPoorGoodGoodGoodGoodMixedPoorPoor
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 / night6°/-2°6°/-3°10°/0°13°/3°18°/7°21°/10°24°/12°24°/13°19°/9°15°/7°9°/2°7°/-1°
Rain, mm1199610096121987886108122155141
Snow at high pointLikelyLikelyLikelyLikelyLikely––––FrostPossibleLikely
Daylight9 h 0610 h 2211 h 5013 h 2714 h 5015 h 3815 h 2114 h 1012 h 3711 h 039 h 348 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?

Checking snow-monitoring coverage... Notifications require permission on this device; on iPhone use the installed Home Screen app. No email alerts are sent.

Safety & Bailouts

Exit routes not verified

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.

Mapped high point: 1992 m, approximately 8.5 km along the route. This is not an assessment of the most remote or exposed point.

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, 1372m ascent, max altitude 1991.7m, ~7h duration.

Essential 7 items
  • 👟
    Trail running shoes / hiking boots
    Required for any trail
  • 📱
    Phone (charged) + offline map
    Navigation & emergency contact
  • 💧
    3L hydration vest
    Estimated 3.3L; verify refill availability
  • 🍫
    Trail mix, bars & sandwich
    Est. 2292 kcal burn
  • 🧴
    Sunscreen SPF 50+
    UV intensifies above 1500m
  • 🧢
    Sun hat / cap
    Exposed alpine terrain
  • 🆘
    Emergency space blanket
    Critical for preventing hypothermia if you stop moving
Recommended 6 items
  • 🕶️
    Sunglasses (cat 3+)
    Snow & rock glare at altitude
  • 🧥
    Light rain jacket
    Weather changes fast in the mountains
  • 🔦
    Headlamp
    7h route — plan for delays
  • 🩹
    Mini first aid kit
    Blister plasters, tape, antiseptic
  • 🥢
    Trekking poles
    16% steep terrain, 1372m+ ascent
  • 🧊
    Microspikes / light crampons
    Snow risk in Jan, Feb, Mar
Nice to have 1 items
  • 🦵
    Gaiters
    Keep 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.

Start — Getting There
near Le Cohard
🚌 Le Grand Pré (2.0km)
Finish — Getting Back
La Martinette
🚌 Le Grand Thiervoz (24m)
🚌 Le Curtillard (115m)
🚌 Les Millets (203m)

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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Route data from OpenStreetMap © contributors, licensed under ODbL. Updated 2026-04-02.