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The iconic Grande Traversée des Alpes, where majestic mountains meet glacial lakes, charming villages and rich history.


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Map Key

328.2

Miles

528.2

KM

72%

Runnable

9,005' 2,745 m

High

21' 6 m

Low

91,484' 27,884 m

Up

92,722' 28,262 m

Down

11%

Avg Grade (6°)

42%

Max Grade (23°)

Dogs Unknown

Features Birding · Commonly Backpacked · Geological Significance · Hot Spring · Lake · River/Creek · Views · Wildflowers · Wildlife

Optimal times to run the Grande Traversée des Alpes are from end of June to September. Summer offers mild weather, open trails, and vibrant landscapes. Early June might have lingering snow at high passes, requiring extra caution. July and August provide warm temperatures but can be crowded. September features fewer crowds and pleasant weather, but some accommodations may start closing.

Plan wisely to savor the journey's beauty while considering trail conditions and personal preferences.

Overview

Embark on the extraordinary Grande Traversée des Alpes, an approximately 600-kilometer odyssey from Lac Léman to Nice, France. This remarkable trail weaves through a captivating tapestry of landscapes, cultures, and challenges.

Need to Know

As you traverse the Grande Traversée des Alpes, a tapestry of life unfolds. Majestic ibex and agile chamois traverse rocky terrain, while marmots pop out in alpine meadows. Golden eagles soar overhead, while rare alpin ptarmigans can be seen. Vibrant wildflowers carpet the meadows, from the iconic edelweiss to delicate gentians. Bees and bumblebees diligently pollinate alpine plants, and butterflies grace the air with their delicate dance. In lower elevations and near water bodies, mosquitoes can be present, so insect repellent might be handy.

Runner Notes

Trail runners tackling the Grande Traversée des Alpes should gear up with sturdy trail shoes for rocky and uneven terrains. Be ready for muddy sections and steep ascents/descents. Layer clothing for changing weather, including rain gear. Carry a map or GPS, stay hydrated by planning water stops, and pack essentials like a first aid kit. Train for elevation changes and adjust your pace. Yield to hikers, respect the environment, and follow trail etiquette. The trail offers both challenges and rewards, making preparation and adaptability key to a successful and safe run.

Description

Starting at Lac Léman, you'll set off from the serene shores of Lake Geneva, gradually transitioning from tranquil lakeside paths to ascending alpine terrain. Passing through towns like Thonon-les-Bains and Morzine, you'll witness a blend of mountain charm and urban comfort.

Around the midpoint, Les Gets marks a turning point with more demanding ascents. The Parc Naturel Régional du Vercors presents towering limestone cliffs, rugged plateaus, and deep gorges, revealing nature's grandeur. In Grenoble, embrace the contrast of city life and alpine beauty.

Journeying further south, the Ecrins National Park unfolds in all its glory, showcasing glacier-carved valleys, crystalline lakes, and towering peaks. Briançon, a UNESCO site, offers a glimpse into history with its well-preserved fortifications.

Approaching the Southern Alps, challenges intensify. Trekking through Mercantour National Park rewards with stunning views, but demanding terrain tests endurance. Villages like Saint-Étienne-de-Tinée offer cultural immersion and brief respites.

The descent towards the Mediterranean leads to Nice, revealing the coastal allure of the Côte d'Azur. As you run along the Promenade des Anglais, the culmination of this incredible journey becomes tangible.

Challenges include diverse terrain, from gentle slopes to rocky passes. Weather shifts unexpectedly, necessitating preparedness for varying conditions. Adequate gear, navigation tools, and sturdy footwear are paramount. Altitude changes demand adaptation, while strategic planning ensures access to essentials.

Highlights are abundant. Majestic mountains frame your path, while serene lakes mirror the sky. Villages and cities exude historical significance, bridging the gap between past and present. Encounter diverse flora and fauna, from vibrant wildflowers to elusive ibex.

In essence, the Grande Traversée des Alpes is an epic saga of nature, history, and personal triumph. It tests limits and rewards with profound experiences, making it a must for adventurous souls seeking an unforgettable journey.

Flora & Fauna

Here's a glimpse of what you might encounter:

Plants:

Alpine Wildflowers: A vibrant array of wildflowers blankets the meadows and slopes, including gentians, edelweiss, alpine asters, and various colorful blossoms.
Coniferous Trees: As you ascend, you'll encounter forests of pine, spruce, and fir trees.
Beech and Oak Forests: Lower elevations may feature beech and oak trees, adding to the trail's botanical diversity.
Alpine Plants: Adapted to harsh conditions, you might spot cushion plants, saxifrages, and other hardy species.
Animals:

Ibex: These impressive mountain goats are a common sight, especially in the higher reaches of the trail.
Chamois: Agile and swift, chamois can be spotted in rocky terrain and alpine meadows.
Marmots: These adorable rodents often inhabit alpine meadows, emitting their distinctive whistles.
Golden Eagles: Majestic raptors may so

Shared By:

Maxime Vincent

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Photos

Singletrack along the Franco-Swiss border.
Aug 29, 2017 near Champéry, CH
It's a snowy July this year!
Jul 11, 2016 near Chamoni…, FR
The open meadow of Merlet.
Jul 14, 2015 near Les Hou…, FR
Ibex letting you know who's boss.
Jul 11, 2016 near Chamoni…, FR
Looking out at the mountains above Merlet.
Jul 14, 2015 near Les Hou…, FR

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