Hard mountain bike ride. Very good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 24, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 10.0 km for 225 m

Waypoints

Start point

Bus stop

Get Directions

6.72 km

Étang de Lalleyriat

Highlight • Lake

This beautiful spot is ideal for taking a break. There are benches and public restrooms.

Translated by Google •

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12.5 km

Col de Bérentin

Highlight • Mountain Pass

Small pass in the Jura between Saint-Germain-de-Joux and Valromey.

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22.9 km

Cuvéry Pass

Highlight • Mountain Pass

The Col de Cuvery, from Bellegarde-sur-Valserine, is 14.4 kilometers long with an average gradient of between 5 and 6%.

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26.6 km

Plateau de Retord

Highlight • Other

The Retord plateau is a fantastic place for hiking or cycling. This was one of my highlights of the entire GTJ. A mix between wide open spaces and wooded areas! …

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30.8 km

Panorama of Crêt du Nu

Highlight • Other

Open panorama on the Alps facing Mont Blanc. View of the Grand Colombier, the Belledonne massif and the Chartreuse to the south.
This panorama is easier to access and more …

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33.5 km

Terments Cross

Highlight • Other

Small pass at the crossroads of the Crêt du Nu, summit of the Plateau de Retord, the Mont Blanc de Beauregard panorama, the hamlet of Bergonnes and the resort of Plans d'Hotonnes.

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37.1 km

A small resort on the Grandes Traversées du Jura trails. The resort boasts numerous mountain bike and hiking trail departure points, a biathlon stadium, and more. Ideal for exploring the Jura Mountains.

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37.2 km

Monument to the Maquis of Plans d'Hotonnes

Highlight • Other

Stele paying tribute to the Resistance fighters who took to the Maquis on the Plateau de Retord during the Second World War. Several information panels on the history of the Resistance fighters near the various farms occupied at the time.

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64.5 km

End point

Bus stop

Way Types & Surfaces

Way Types

33.9 km

23.9 km

6.06 km

590 m

101 m

Surfaces

29.1 km

18.2 km

11.1 km

5.43 km

755 m

Elevation

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

Highest point (1,340 m)

Lowest point (500 m)

Weather

Sunday 19 April

17°C

2°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

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

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Étang de Lalleyriat

Col de Bérentin

Cuvéry Pass

Plateau de Retord

Panorama of Crêt du Nu

Terments Cross

Plans d'Hotonnes Station

Monument to the Maquis of Plans d'Hotonnes

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