Sault-Brénaz Dam – Villebois Dam loop from Briord

Sault-Brénaz Dam – Villebois Dam loop from Briord

Hard

riders

Sault-Brénaz Dam – Villebois Dam loop from Briord

03:42

53.6km

1,000m

Gravel riding

Hard gravel 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: August 23, 2026

Waypoints

Start point

Bus stop

Get Directions

4.40 km

Start of the Col de Portes from Serrières-de-Briord

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Sign for the start of the Col de Portes starting from Serrières-de-Briord, with indications of altitude, difference in altitude, average slope...

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11.6 km

Sault-Brénaz Dam

Highlight • Structure

The Sault-Brénaz dam (also called Villebois dam or Sault-Brénaz facility) is an important hydroelectric infrastructure located on the Rhône River. It lies on the border between the departments of Ain and Isère, mainly near the communes of Sault-Brénaz and Villebois.

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11.9 km

Villebois Dam

Highlight • Other

Pleasant crossing point to cross the island and change sides of the Rhone.

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28.0 km

Col de Portes

Mountain Pass

28.7 km

Le Calvaire

Highlight • Viewpoint

One of the highest points above Contrevoz. Climbing up the GR was not easy, but was beautiful.

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50.8 km

View of the Bugey Vineyards

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Beautiful view of the hillsides of Bugey at the foot of the Jura

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53.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

37.5 km

12.4 km

2.29 km

986 m

417 m

Surfaces

37.9 km

11.7 km

2.88 km

1.03 km

108 m

Elevation

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

Highest point (1,000 m)

Lowest point (200 m)

Weather

Sunday 11 October

18°C

5°C

0 %

Additional weather tips

Max wind speed: 8.0 km/h

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Sault-Brénaz Dam – Villebois Dam loop from Briord

Start of the Col de Portes from Serrières-de-Briord

Sault-Brénaz Dam

Villebois Dam

Le Calvaire

View of the Bugey Vineyards

Nearby routes

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