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Routes
Mountain hikes & routes
France
Auvergne Rhône Alpes
Thonon-Les-Bains
La Chapelle-D'Abondance

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

Routes
Mountain hikes & routes
France
Auvergne Rhône Alpes
Thonon-Les-Bains
La Chapelle-D'Abondance

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

Hard

5.0

(2)

12

hikers

Bosse Pass – Chablais Geopark loop from Les Cornettes de Bise

05:28

10.3km

940m

Mountaineering

Hard mountaineering route. 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: April 17, 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 4.02 km

Waypoints

A

Start point

Parking

Get Directions

1

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

2

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

3

5.65 km

Pas de Chaudin

Highlight • Mountain Pass

"A rocky and isolated pass, located near the Cornettes de Bise. The pass offers wonderful views of beautiful mountains, with some really interesting geological features to observe. Additionally, the feeling of isolation of the pass should add an excellent tourist note. 'adventure on any outing.'

Translated by Google •

Tip by

4

7.46 km

Col d'Ugeon — view of the Dent du Vélan

Highlight • Mountain Pass

5

7.53 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

6

9.84 km

Chablais Geopark

Highlight • Other

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

Translated by Google •

Tip by

B

10.3 km

End point

Parking

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Way Types & Surfaces

Way Types

5.63 km

4.26 km

233 m

< 100 m

< 100 m

< 100 m

Surfaces

5.32 km

4.26 km

343 m

233 m

< 100 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Monday 11 May

11°C

-3°C

12 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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