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Bike touring routes & trails

Auvergne Rhône Alpes

Cize-Bolozon Viaduct – Lac de Nantua loop from Poncin

Bike touring routes & trails

Auvergne Rhône Alpes

Cize-Bolozon Viaduct – Lac de Nantua loop from Poncin

Hard

4.0

(1)

7

riders

Cize-Bolozon Viaduct – Lac de Nantua loop from Poncin

05:20

78.2km

1,060m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 28, 2026

Waypoints

A

Start point

Parking

Get Directions

1

3.50 km

Chateau de la Cueille

Highlight • Other

Nice view of this castle on a rocky outcrop along the river Ain.

Translated by Google •

Tip by

2

21.1 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

3

29.6 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 •

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4

32.0 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

35.4 km

Col de Matafelon

Mountain Pass

6

49.1 km

Lac de Nantua

Highlight • Lake

Lake Nantua is of glacial origin and is 141 hectares. The limestone cliffs offer a magnificent contrast with the emerald or sapphire water, depending on the day. Alexandre Dumas described …

Translated by Google •

Tip by

7

50.8 km

Lac de Nantua

Highlight • Lake

Beautiful lake for swimming

Translated by Google •

Tip by

8

51.6 km

Cycle path along Lake Nantua

Highlight (Segment) • Other

Beautiful path, probably busier when the weather is nice. If I read it correctly, the small road should be closed on weekends.

Translated by Google •

Tip by

9

72.7 km

Cerdon and its Vineyards

Highlight • Settlement

B

78.2 km

End point

Parking

Way Types & Surfaces

Way Types

49.5 km

13.9 km

6.97 km

3.52 km

2.73 km

1.56 km

< 100 m

Surfaces

57.9 km

11.7 km

7.81 km

748 m

102 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 (630 m)

Lowest point (250 m)

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Weather

Powered by Foreca

Tuesday 14 July

33°C

20°C

61 %

Additional weather tips

Max wind speed: 17.0 km/h

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