Stage 2 of 7 · La Haute Traversée de Belledonne

Pont Geoffroy → La Pierre

Distance
16.6 km
Ascent
+1,585 m
Descent
-1,027 m
Est. Time
6h 49m
Altitude
1,319.4–2,271.1 m
Type
point-to-point
🏔️ Mountainous❄️ Alpine
🚌

Getting Here

Pont Geoffroy (bus stop)

15227m from trailhead · ~184 min walk

📍

End: La Pierre

No nearby transit stop at the end. Check the next stage's start stop.

Elevation Profile

1,400m1,600m1,800m2,000m2,200m0 km2 km4 km6 km8 km10 km12 km14 km16 km17 km2,271m1,319m
Steep (15–25%) Moderate (10–15%) Flat (<5%) Easy (5–10%)

Route Map

Segment Breakdown

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

SegmentDist↑ / ↓TimeCharacter
Pont Geoffroy → km 7.9 (1745m)
1,319–1,990m
7.9 km+842m / -417m3h 11m📈 Climbing
km 7.9 (1745m) → km 12.2 (1980m)
1,630–1,999m
4.3 km+579m / -344m2h 00m📈 Climbing
km 12.2 (1980m) → La Pierre
1,842–2,271m
4.4 km+578m / -662m2h 10m📉 Descending
Total16.6 km+1,585m / -1,027m7h 21m

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 20m
Calories
2,040 kcal
Water Needed
2.9 L
Effort Distance
37.6 km
flat-equivalent
🍫 Recommended: ~45g carbs/hr (196g total) 🧂 Electrolytes: ~2173mg sodium/hr

Terrain Analysis

Runnability
0%
Steep / Technical
% of route below 15% gradient
Climb Ratio
95 m/km
Very steep profile
↑ 1,585m ↓ 1,027m

Surface & Technicality

Terrain Difficulty Breakdown
Runnable Flat (16%) Easy Grade (48%) Moderate Climb (27%) Steep (10%)
Surface Type
Unknown (42%) Asphalt (23%) Gravel (9%) Dirt (9%) Ground (8%) Compacted (3%) Concrete (2%) Wood (2%) Unpaved (2%)

🥾 Mixed terrain: expect sustained climbs between runnable sections.

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
76% north-facing slopes
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: May, Jun, Jul, Aug, Sep, Oct

Suggested Gear List

Auto-generated based on 16.6 km, 1585m ascent, max altitude 2271.1m, ~7h duration.

Essential 8 items
  • 👟
    Trail running shoes / hiking boots
    Required for any trail
  • 📱
    Phone (charged) + offline map
    Navigation & emergency contact
  • 💧
    3L hydration vest
    Estimated 3.4L needed
  • 🍫
    Trail mix, bars & sandwich
    Est. 2386 kcal burn
  • 🧴
    Sunscreen SPF 50+
    UV intensifies above 2000m
  • 🧢
    Sun hat / cap
    Exposed alpine terrain
  • 🧥
    Windbreaker / shell jacket
    Summit at 2271.1m — wind chill
  • 🆘
    Emergency space blanket
    Critical for preventing hypothermia if you stop moving
Recommended 6 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
  • 🥢
    Trekking poles
    10% steep terrain, 1585m+ 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 Pont Geoffroy to La Pierre (16.6 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There
Pont Geoffroy
🚌 Pont Geoffroy (4.7km)
Finish — Getting Back
La Pierre
No transit stops detected nearby. Check local timetables.

Nearby Points of Interest

🚌 Transit Stops

  • Pont Geoffroy 4.7 km off trail
  • Pré Rond km 11.1 · 4.4 km off trail
  • Beauvoir km 11.1 · 4.8 km off trail
  • Super Collet km 11.1 · 5.0 km off trail

🛖 Shelters

  • Shelter km 15.9 · 120m off trail

💧 Water Sources

  • Drinking Water 2.3 km off trail
  • Drinking Water 1.3 km off trail
  • Drinking Water 1.7 km off trail
  • Drinking Water km 0.1 · 1.2 km off trail
  • Drinking Water km 0.1 · 744m off trail

🏠 Mountain Huts

  • Cabane de Champet km 0.1 · 192m off trail

Take this route with you

Download the GPX file for your GPS watch or phone. Works with Garmin, Suunto, COROS, Apple Watch, and all GPX-compatible apps.

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