Stage 9 of 11 · Gr20

Col de Vergio → Calasima

Distance

14.3 km

Ascent

+1,103 m

Descent

-717 m

Est. Time

5h 36m

Altitude

1,360.7–2,040.5 m

Type

point-to-point

🏔️ Mountainous❄️ Alpine

Trail route lab

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14.3 km Distance1,103 m Climb5h 36m Est. time2,041 m High pointHARD Difficulty

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🚌

Getting Here

Col de Vergio (bus stop)

600m from trailhead · ~9 min walk

🚌

Getting Out

Calasima (bus stop)

7971m from trail end · ~116 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
Col de Vergio → km 3.6 (1573m) 1,361–1,575m	3.6 km	+492m / -334m	1h 42m	📈 Climbing
km 3.6 (1573m) → km 8.6 (1765m) 1,572–2,041m	5 km	+631m / -438m	2h 16m	📈 Climbing
km 8.6 (1765m) → Calasima 1,369–1,838m	5.7 km	+740m / -668m	2h 42m	📈 Climbing
Total	14.3 km	+1,103m / -717m	6h 41m

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

3h 20m

Calories

1,534 kcal

Water Needed

2.2 L

Effort Distance

28.9 km

flat-equivalent

🍫 Recommended: ~45g carbs/hr (151g total) 🧂 Electrolytes: ~1673mg sodium/hr

Terrain Analysis

Runnability

Steep / Technical

% of route below 15% gradient

Climb Ratio

77 m/km

Very steep profile

↑ 1,103m ↓ 717m

Surface & Technicality

Terrain Difficulty Breakdown

Easy Grade (34%) Moderate Climb (5%) Steep (61%)

⛰️ Highly technical route. Power-hiking the steep sections is expected.

Surface

≈19% paved · ≈81% unpaved

Mostly unpaved

Estimated for the full route from the 26% with mapped surface data in OpenStreetMap.

Current Conditions

Loading live weather...

Conditions for July

ℹ️ Shoulder season

Snow Risk

Unlikely

Mud Risk

10%

Low

Ice Risk

Unlikely

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

Best months: Mar, Apr, May, Jun, Sep, Oct, Nov

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Get one email the moment this route melts out and is snow-free. We use your verified account email — never typed into a form.

Suggested Gear List

Auto-generated based on 14.3 km, 1103m ascent, max altitude 2040.5m, ~6h duration.

Essential 7 items

👟
Trail running shoes / hiking boots

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

Navigation & emergency contact
💧
3L hydration vest

Estimated 2.6L needed
🍫
Trail mix, bars & sandwich

Est. 1829 kcal burn
🧴
Sunscreen SPF 50+

UV intensifies above 2000m
🧢
Sun hat / cap

Exposed alpine terrain
🧥
Windbreaker / shell jacket

Summit at 2040.5m — wind chill

Recommended 5 items

🕶️
Sunglasses (cat 3+)

Snow & rock glare at altitude
🧤
Warm mid-layer (fleece)

Temps drop ~6°C per 1000m
🩹
Mini first aid kit

Blister plasters, tape, antiseptic
🥢
Trekking poles

61% steep terrain, 1103m+ 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 Col de Vergio to Calasima (14.3 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There

Col de Vergio

🚌 Col de Vergio (320m)

Finish — Getting Back

Calasima

🚌 Calasima (4.2km)

🗺️ Transit directions (Google)

Nearby Points of Interest

🚌 Transit Stops

Col de Vergio 320m off trail
Calasima km 12.6 · 4.2 km off trail

💧 Water Sources

Fontaine de Ciottulu km 7.1 · 161m off trail
Drinking Water km 11.9 · 156m off trail
Drinking Water km 14.1 · 853m off trail
Drinking Water km 14.2 · 2.3 km off trail

🏠 Mountain Huts

Bergerie de Tilarba (en ruine) km 12.7 · 1.3 km off trail
Refuge km 14.1 · 850m off trail

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Previous Stage

Gr20 Stage 8: Bergerie du Melo → Col de Vergio

Next Stage

Gr20 Stage 10: Calasima → Bonifato

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← Back to all 11 stages of Gr20