Stage 1 of 7 · La Haute Traversée de Belledonne

Start → Pont Geoffroy

Distance

19.5 km

Ascent

+1,564 m

Descent

-589 m

Est. Time

6h 59m

Altitude

319.1–1,407 m

Type

point-to-point

🏔️ Mountainous

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19.5 km Distance1,564 m Climb6h 59m Est. time1,407 m High pointHARD Difficulty

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🚌

Getting Here

Aiguebelle (bus stop)

630m from trailhead · ~7 min walk

🚌

Getting Out

Pont Geoffroy (bus stop)

15227m from trail end · ~184 min walk

Elevation Profile

Flat (<5%) Gentle (5–10%) Moderate (10–15%) Steep (15–25%) Very steep (>25%)

Route Map

🗺️ Open in Planner → | 🏔️ View 3D Flyover →

Segment Breakdown

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

Segment	Dist	↑ / ↓	Time	Character
Start → km 7.2 (1262m) 319–1,262m	7.2 km	+963m / -24m	3h 03m	🔺 Steep Climb
km 7.2 (1262m) → km 13.3 (1042m) 1,042–1,407m	6 km	+218m / -438m	1h 47m	📉 Descending
km 13.3 (1042m) → Pont Geoffroy 863–1,319m	6.2 km	+484m / -206m	2h 09m	📈 Climbing
Total	19.5 km	+1,564m / -589m	7h 00m

Pace & Fuel Calculator

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

Your flat 10K pace 7:00 /km

4:00 /km (elite) 12:00 /km (leisure)

Fast Hiker / Jogger

Est. Finish Time

4h 29m

Calories

2,098 kcal

Water Needed

3 L

Effort Distance

38.1 km

flat-equivalent

🍫 Recommended: ~45g carbs/hr (202g total) 🧂 Electrolytes: ~2245mg sodium/hr

Terrain Analysis

Runnability

Steep / Technical

% of route below 15% gradient

Climb Ratio

80 m/km

Very steep profile

↑ 1,564m ↓ 589m

Surface & Technicality

Terrain Difficulty Breakdown

Runnable Flat (14%) Easy Grade (41%) Moderate Climb (27%) Steep (19%)

🥾 Mixed terrain: expect sustained climbs between runnable sections.

Surface

≈43% paved · ≈57% unpaved

Mixed paved & unpaved

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

Current Conditions

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Conditions for July

ℹ️ Shoulder season

Snow Risk

Unlikely

100% north-facing slopes

Mud Risk

10%

Low

Ice Risk

Unlikely

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

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

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Suggested Gear List

Auto-generated based on 19.5 km, 1564m ascent, max altitude 1407m, ~7h duration.

Essential 5 items

👟
Trail running shoes / hiking boots

Required for any trail
📱
Phone (charged) + offline map

Navigation & emergency contact
💧
3L hydration vest

Estimated 3.5L needed
🍫
Trail mix, bars & sandwich

Est. 2449 kcal burn
🆘
Emergency space blanket

Critical for preventing hypothermia if you stop moving

Recommended 6 items

🧴
Sunscreen

Basic sun protection
🧥
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

19% steep terrain, 1564m+ ascent
🧊
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 Start to Pont Geoffroy (19.5 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There

Start

🚌 Aiguebelle (321m)

🚌 Ferme Gachet (arrêt scolaire) (2.6km)

🚌 Lotissement Marcantoux (arrêt scolaire) (2.8km)

Finish — Getting Back

Pont Geoffroy

🚌 Pont Geoffroy (4.2km)

🚌 Pont Turin (4.5km)

🚌 La Charrière (4.5km)

🗺️ Transit directions (Google)

Nearby Points of Interest

🚌 Transit Stops

Argentine Gemelly 3.1 km off trail
Lotissement Marcantoux (arrêt scolaire) 2.8 km off trail
Le Château (arrêt scolaire) 3.4 km off trail
Ferme Gachet (arrêt scolaire) 2.6 km off trail
Le Coudray (arrêt scolaire) 3.4 km off trail
Les Bottets Haut (arrêt scolaire) 3.0 km off trail
Aiguebelle km 0.1 · 321m off trail
Pré de Foire (arrêt scolaire) km 0.5 · 4.1 km off trail

🛖 Shelters

Shelter 1.9 km off trail
Shelter 1.4 km off trail
Cabane de Mille km 6.2 · 1.6 km off trail

💧 Water Sources

Drinking Water 1.9 km off trail
Drinking Water 396m off trail
Drinking Water 821m off trail
Drinking Water km 0.1 · 462m off trail
Drinking Water km 0.1 · 462m off trail

🏠 Mountain Huts

Cabane de Champet km 19.2 · 259m off trail

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Next Stage

La Haute Traversée de Belledonne Stage 2: Pont Geoffroy → La Pierre

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← Back to all 7 stages of La Haute Traversée de Belledonne