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Routes
Road cycling routes
France
Auvergne Rhône Alpes
La Tour-Du-Pin
Porcieu-Amblagnieu

Col de Fay – Fosses Pass loop from Porcieu - Pont de Sault-Brénaz

Routes
Road cycling routes
France
Auvergne Rhône Alpes
La Tour-Du-Pin
Porcieu-Amblagnieu

Col de Fay – Fosses Pass loop from Porcieu - Pont de Sault-Brénaz

Hard

144

riders

Col de Fay – Fosses Pass loop from Porcieu - Pont de Sault-Brénaz

05:56

114km

2,050m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 21, 2026

Waypoints

A

Start point

Train Station

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1

9.62 km

Col de Fay

Highlight • Mountain Pass

Nice flexible rise in postcard decorations.

Translated by Google •

Tip by

2

10.3 km

View of the Vallée Bleue

Highlight • Other

View of the Blue Valley of Montalieu-Vercieu during the descent from the Col de Fay.

Translated by Google •

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19.7 km

Col de Portes

Mountain Pass

4

49.7 km

Cerin Peat Bog

Highlight • Other

Cerin Lake, also known as the Cerin Peat Bog, is subject to various environmental protections. The early development of its formation compared to other lakes in the Jura Mountains makes …

Translated by Google •

Tip by

5

53.5 km

Col des Fosses (745 m)

Highlight • Mountain Pass

Pass accessible from Appregnin or Lhuis, located at an altitude of 745 m.

Translated by Google •

Tip by

6

53.7 km

Fosses Pass

Highlight • Mountain Pass

Little traffic.
Beautiful panoramas of the Alps on the east side.

Translated by Google •

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7

54.9 km

Lac d'Ambléon

Highlight • Lake

A small altitude lake in the heart of Bugey. Easily accessible: on the roadside.

Translated by Google •

Tip by

8

59.7 km

All the information you need about the upcoming climb: length, average gradient, etc.
A great initiative from the Ain Department.

Translated by Google •

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71.2 km

Col du Sansonnet

Mountain Pass

10

107 km

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

Translated by Google •

Tip by

B

114 km

End point

Train Station

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Way Types & Surfaces

Way Types

113 km

1.15 km

144 m

< 100 m

Surfaces

111 km

3.00 km

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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 (1,000 m)

Lowest point (200 m)

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Weather

Powered by Foreca

Monday 19 October

14°C

8°C

98 %

Additional weather tips

Max wind speed: 17.0 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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