Stage 3 of 8 · Tour du Mont Blanc

Le Barattet → km 59

Distance
19.6 km
Ascent
+1,036 m
Descent
-1,323 m
Est. Time
6h 44m
Altitude
1,549.5–2,508.8 m
Type
point-to-point
🏔️ Mountainous❄️ Alpine
🚌

Getting Here

Le Barattet (bus stop)

9357m from trailhead · ~117 min walk

🚌

Getting Out

Le Barattet (bus stop)

10020m from trail end · ~125 min walk

Elevation Profile

1,600m1,800m2,000m2,200m2,400m2,600m0 km5 km10 km15 km20 km2,509m1,550m
Easy (5–10%) Steep (15–25%) Flat (<5%) Moderate (10–15%)

Route Map

Segment Breakdown

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

SegmentDist↑ / ↓TimeCharacter
Le Barattet → km 3.7 (1893m)
1,893–2,480m
3.7 km+139m / -652m1h 17m🔻 Steep Descent
km 3.7 (1893m) → km 12.3 (1918m)
1,550–1,921m
8.6 km+470m / -446m2h 43m🏃 Highly Runnable
km 12.3 (1918m) → km 59
1,914–2,509m
7.3 km+662m / -461m2h 47m📈 Climbing
Total19.6 km+1,036m / -1,323m6h 49m

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 06m
Calories
3,217 kcal
Water Needed
3.4 L
Effort Distance
36.6 km
flat-equivalent
🍫 Recommended: ~45g carbs/hr (185g total) 🧂 Electrolytes: ~2055mg sodium/hr

Terrain Analysis

Runnability
0%
Steep / Technical
% of route below 15% gradient
Climb Ratio
53 m/km
Steep profile
↑ 1,036m ↓ 1,323m

Surface & Technicality

Terrain Difficulty Breakdown
Runnable Flat (16%) Easy Grade (40%) Moderate Climb (28%) Steep (16%)

🥾 Mixed terrain: expect sustained climbs between runnable sections.

Current Conditions

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Conditions for June

ℹ️ Shoulder season
Snow Risk
5%
Unlikely
Mud Risk
30%
Moderate
Ice Risk
0%
Unlikely

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

🥾 Muddy sections likely. Waterproof boots recommended.

Best months: 5, 6, 7, 8, 9, 10

Suggested Gear List

Auto-generated based on 19.6 km, 1036m ascent, max altitude 2508.8m, ~7h duration.

Essential 8 items
  • 👟
    Trail running shoes / hiking boots
    Required for any trail
  • 📱
    Phone (charged) + offline map
    Navigation & emergency contact
  • 💧
    3L hydration vest
    No water sources on route
  • 🍫
    Trail mix, bars & sandwich
    Est. 3813 kcal burn
  • 🧴
    Sunscreen SPF 50+
    UV intensifies above 2000m
  • 🧢
    Sun hat / cap
    Exposed alpine terrain
  • 🧥
    Windbreaker / shell jacket
    Summit at 2508.8m — wind chill
  • 🆘
    Emergency space blanket
    Critical if injured at altitude
Recommended 5 items
  • 🕶️
    Sunglasses (cat 3+)
    Snow & rock glare at altitude
  • 🧤
    Warm mid-layer (fleece)
    Temps drop ~6°C per 1000m
  • 🔦
    Headlamp
    7h route — plan for delays
  • 🩹
    Mini first aid kit
    Blister plasters, tape, antiseptic
  • 🧊
    Microspikes / light crampons
    Snow risk in 12, 1, 2
Nice to have 2 items
  • 🥢
    Trekking poles (optional)
    1036m ascent — helps on descents
  • 🦵
    Gaiters
    Keep snow out of boots

Logistics

This route runs from Le Barattet to km 59 (19.6 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There
Le Barattet
🚌 Le Barattet (9.4km)
Finish — Getting Back
km 59
🚌 Le Barattet (10.0km)

Take this route with you

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Route data from OpenStreetMap © contributors, licensed under ODbL. Updated 2026-04-03.