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Bike touring routes & trails

Auvergne Rhône Alpes

Along Lake Coiselet – Cize-Bolozon Viaduct loop from Dortan

Bike touring routes & trails

Auvergne Rhône Alpes

Along Lake Coiselet – Cize-Bolozon Viaduct loop from Dortan

Hard

5.0

(5)

61

riders

Along Lake Coiselet – Cize-Bolozon Viaduct loop from Dortan

03:35

58.0km

600m

Cycling

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

Last updated: April 21, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional du Haut-Jura

Waypoints

A

Start point

Bus stop

Get Directions

2.72 km

La Bienne

Lake

2

6.95 km

View of Lac de Coiselet

Highlight • Lake

Magnificent view of the Ain, here as a reservoir.

Translated by Google •

Tip by

3

7.98 km

Along Lake Coiselet

Highlight (Segment) • Lake

A quiet road that runs along the shore of Lac de Coiselet. It is on the border between the departments of Ain and Jura.

Translated by Google •

Tip by

4

14.5 km

View of Coisia

Highlight • Other

The church above the town is worth seeing.

Translated by Google •

Tip by

5

19.6 km

Restaurant le Pont

Highlight • Restaurant

A café in the small village of Thierette. It is a very beautiful place next to the Ain river. It's just over the river and a nice place to take a break.

Translated by Google •

Tip by

6

20.2 km

Memorial in Thoirette

Highlight • Other

In memory of the fallen.

Translated by Google •

Tip by

7

22.1 km

Lac de Conflans

Highlight • Lake

This magnificent lake lies at the confluence of the Ain and Valouse rivers. It is located at the foot of the medieval Château de Conflans.

Translated by Google •

Tip by

8

30.6 km

Cize-Bolozon Viaduct

Highlight • Other

The Cize-Bolozn viaduct is a railway road bridge that crosses the Ain river. It is 73 meters high and was built in 1875.

Translated by Google •

Tip by

9

47.4 km

Barrage de Coiselet

Highlight • Structure

51.9 km

Lac de Coiselet

Lake

B

58.0 km

End point

Bus stop

Way Types & Surfaces

Way Types

57.4 km

570 m

Surfaces

57.6 km

261 m

110 m

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Elevation

Elevation

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

Highest point (350 m)

Lowest point (280 m)

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Weather

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Monday 25 May

32°C

13°C

-- %

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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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