Stage 7 of 7 · La Haute Traversée de Belledonne

Aiguille → End

Distance
17.1 km
Ascent
+181 m
Descent
-1,569 m
Est. Time
5h 02m
Altitude
281.6–1,680.8 m
Type
point-to-point
🏃 Flat & Runnable
🚂

Getting Here

Aiguille (train station)

282m from trailhead · ~3 min walk

🚌

Getting Out

Collège Les Mattons (bus stop)

94m from trail end · ~1 min walk

Elevation Profile

400m600m800m1,000m1,200m1,400m1,600m1,800m0 km2 km4 km6 km8 km10 km12 km14 km16 km18 km1,681m282m
Easy (5–10%) Moderate (10–15%) Flat (<5%) Steep (15–25%)

Route Map

Segment Breakdown

Auto-analyzed from the elevation profile. Each segment shows the dominant character for planning your effort.

SegmentDist↑ / ↓TimeCharacter
Aiguille → km 6.3 (1329m)
1,255–1,681m
6.3 km+134m / -485m1h 42m📉 Descending
km 6.3 (1329m) → km 11.3 (1126m)
1,116–1,404m
5 km+144m / -348m1h 25m📉 Descending
km 11.3 (1126m) → End
282–1,128m
5.8 km+20m / -858m1h 37m🔻 Steep Descent
Total17.1 km+181m / -1,569m4h 46m

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
2h 49m
Calories
1,453 kcal
Water Needed
2.1 L
Effort Distance
26.8 km
flat-equivalent
🍫 Recommended: ~45g carbs/hr (127g total) 🧂 Electrolytes: ~1412mg sodium/hr

Terrain Analysis

Runnability
0%
Steep / Technical
% of route below 15% gradient
Climb Ratio
11 m/km
Gentle profile
↑ 181m ↓ 1,569m

Surface & Technicality

Terrain Difficulty Breakdown
Runnable Flat (15%) Easy Grade (23%) Moderate Climb (46%) Steep (15%)
Surface Type
Unknown (42%) Asphalt (23%) Gravel (9%) Dirt (9%) Ground (8%) Compacted (3%) Concrete (2%) Wood (2%) Unpaved (2%)

🧗 Challenging terrain with significant elevation changes. Expect to walk the climbs.

Surface Breakdown

Unknown (42%)
Paved (23%)
Gravel (9%)
Dirt (9%)
Natural Ground (8%)
Compacted (3%)
Paved (2%)
Wood (2%)
Unpaved Trail (2%)

Current Conditions

Loading live weather...

Conditions for June

ℹ️ Shoulder season
Snow Risk
0%
Unlikely
100% north-facing slopes
Mud Risk
15%
Low
Ice Risk
0%
Unlikely

Snow unlikely at this elevation in June. Trail conditions expected to be clear.

Best months: May, Jun, Jul, Aug, Sep, Oct

Suggested Gear List

Auto-generated based on 17.1 km, 181m ascent, max altitude 1680.8m, ~5h duration.

Essential 6 items
  • 👟
    Trail running shoes / hiking boots
    Required for any trail
  • 📱
    Phone (charged) + offline map
    Navigation & emergency contact
  • 💧
    3L hydration vest
    Estimated 2.5L needed
  • 🍫
    Trail mix, bars & sandwich
    Est. 1762 kcal burn
  • 🧴
    Sunscreen SPF 50+
    UV intensifies above 1500m
  • 🧢
    Sun hat / cap
    Exposed alpine terrain
Recommended 4 items
  • 🕶️
    Sunglasses (cat 3+)
    Snow & rock glare at altitude
  • 🧥
    Light rain jacket
    Weather changes fast in the mountains
  • 🩹
    Mini first aid kit
    Blister plasters, tape, antiseptic
  • 🧊
    Microspikes / light crampons
    Snow risk in Dec, Jan, Feb
Nice to have 1 items
  • 🦵
    Gaiters
    Keep snow out of boots

Logistics

This route runs from Aiguille to End (17.1 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There
Aiguille
🚌 École (29m)
🚌 Écrin des Neiges - TSD Bachat (37m)
🚌 Mairie (189m)
Finish — Getting Back
End
🚌 Collège Les Mattons (15m)
🚌 Camping (188m)
🚌 Le Pont du Mas (236m)

Nearby Points of Interest

🚌 Transit Stops

  • Livet RD1091 4.8 km off trail
  • Livet - RD1091 4.4 km off trail
  • Livet Dispensaire 4.5 km off trail
  • Livet 4.0 km off trail
  • Livet - Ecole 4.3 km off trail
  • Lacs Robert 2.0 km off trail
  • Infernet 2.0 km off trail
  • La Savoyarde 4.7 km off trail

🛖 Shelters

  • Chamrousse 1750 Roche Béranger - Centre Commercial km 1.7 · 249m off trail
  • Shelter km 7.7 · 802m off trail
  • Le Pont du Mas km 15.8 · 229m off trail
  • Shelter km 16.6 · 1.4 km off trail
  • Le Moulin km 17.1 · 1.9 km off trail

💧 Water Sources

  • Drinking Water km 1.8 · 210m off trail
  • Fontaine de la Rebellière km 2.6 · 262m off trail
  • Drinking Water km 5 · 646m off trail
  • Drinking Water km 5 · 671m off trail
  • Drinking Water km 6.1 · 305m off trail

Take this route with you

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