Lac d'Ambléon – Fosses Pass loop from Groslée
Lac d'Ambléon – Fosses Pass loop from Groslée
5.0
(1)
37
riders
Lac d'Ambléon – Fosses Pass loop from Groslée
03:51
69.9km
1,520m
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 24, 2026
Waypoints
Start point
Bus stop
15.8 km
Start of the Col de Portes from Serrières-de-Briord
Highlight • Other
Translated by Google •
Tip by
19.8 km
Start of the Climb to Col de Portes
Highlight • Climb
Translated by Google •
Tip by
19.8 km
Col de Portes via Bénonces
Highlight (Segment) • Other
Translated by Google •
Tip by
27.6 km
Col de Portes
Mountain Pass
41.4 km
Préveysieu Orientation Table
Highlight • Viewpoint
Translated by Google •
Tip by
51.1 km
Departure from Col des Fosses in Appregnin (information panel)
Highlight • Other
A great initiative from the Ain Department.
Translated by Google •
Tip by
56.0 km
Lac d'Ambléon
Highlight • Lake
Translated by Google •
Tip by
57.2 km
Fosses Pass
Highlight • Mountain Pass
Beautiful panoramas of the Alps on the east side.
Translated by Google •
Tip by
57.3 km
Col des Fosses (745 m)
Highlight • Mountain Pass
Translated by Google •
Tip by
69.9 km
End point
Bus stop
Way Types & Surfaces
Way Types
70.0 km
Surfaces
70.0 km
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Tuesday 20 October
13°C
7°C
92 %
Additional weather tips
Max wind speed: 6.0 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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