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France

Auvergne Rhône Alpes

Thonon-Les-Bains

La Chapelle-D'Abondance

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

Routes

Hiking trails & Routes

France

Auvergne Rhône Alpes

Thonon-Les-Bains

La Chapelle-D'Abondance

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

Hard

4.6

(24)

323

hikers

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

05:47

10.4km

1,020m

Hiking

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: July 15, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 1.80 km for 4.12 km

Waypoints

Start point

Parking

Get Directions

1.40 km

Bosse Pass

Highlight • Mountain Pass

The Pas de la Bosse is a pedestrian pass at 1,816 meters above sea level. It communicates the valley of Bise and the valley of Abondance.
Take the time to admire the granite bars that tear the lawns of the massif. This landscape that surrounds the valley almost looks like a circus. It's splendid !

Translated by Google •

Tip by

1.84 km

View of Dent du Chat and the climb to Pas de la Bosse

Highlight • Other

3.29 km

Hole in the mountain

Highlight • Other

A cool spot with a vertical cylindrical hole in the mountain. You can see the the ground hundreds of meters below through it. Looks amazing!

Tip by

3.65 km

Cornettes de Bise summit

Highlight • Summit

Magnificent spot with 360 degree view. Be careful in wet weather, the ascent or descent to the pas de la Bosse from the cornette de bise is dangerous in places due to very slippery rocks on exposed and vertical passages.

Translated by Google •

Tip by

4.14 km

Pas de Chaudin - Franco-Swiss

Highlight • Mountain Pass

Very beautiful pass, very frequented by ibexes. From here the climb to the Cornette de Bise is a little steep but without technical difficulty.

Translated by Google •

Tip by

7.58 km

Ugeon Pass

Highlight • Mountain Pass

From here you can either descend directly to the Refuge de Bise or continue the grade with great views to the Col de Bise, from where you can also descend again.

Translated by Google •

Tip by

9.89 km

Chablais Geopark

Highlight • Other

If the weather is good you can already see Mont Blanc in the distance!

Translated by Google •

Tip by

10.0 km

Refuge de Bise

Highlight • Mountain Hut

The view from the terrace is magnificent

Translated by Google •

Tip by

10.4 km

End point

Parking

Way Types & Surfaces

Way Types

5.69 km

4.30 km

233 m

< 100 m

Surfaces

5.37 km

4.30 km

356 m

233 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Sunday 19 July

18°C

8°C

0 %

Additional weather tips

Max wind speed: 7.0 km/h

to get more detailed weather forecasts along your route

Comments

August 5, 2023,Boucle Franco-Suisse les Cornettes de Bises - Haut Chablais ♥️🇫🇷 🇨🇭

Fantastic hike today with lots of beautiful scenery (although clouds and fog didn't allow for really clear views and didn't allow for a lot of photos, but at the same time it gave an end of the day vibe very appreciable world). It's a Natura 2000 reserve and we met an incredible number of ibexes, I think I had never …

Showing Translation

July 4, 2026,Les Cornettes de Bises et la crête du Velan 🇨🇭🇫🇷

Fantastic day: ideal weather to do the mythical hike of Cornettes de Bises, a light North breeze refreshing the air in this period of almost heatwave, very clear weather, beautiful views and many ibexes in the distance. Technical and committed route in places, sublime! Hike done 3 years ago with little visibility, now we have seen it all!

Showing Translation

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Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

Bosse Pass

View of Dent du Chat and the climb to Pas de la Bosse

Hole in the mountain

Cornettes de Bise summit

Pas de Chaudin - Franco-Swiss

Ugeon Pass

Chablais Geopark

Refuge de Bise

Nearby routes

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