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Saint-Jean-De-Maurienne

Saint-Martin-D'Arc

Bonneval-sur-Arc – Iseran Pass loop from Saint-Michel - Valloire

Saint-Jean-De-Maurienne

Saint-Martin-D'Arc

Bonneval-sur-Arc – Iseran Pass loop from Saint-Michel - Valloire

Hard

4.7

(14)

1,167

riders

Bonneval-sur-Arc – Iseran Pass loop from Saint-Michel - Valloire

07:52

147km

2,870m

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: May 9, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 60.7 km for 262 m

Closed: • December-March (otherwise open)

After 61.1 km for 4.53 km

Closed: • November-May

After 82.0 km for 4.53 km

Closed: • November-May

Waypoints

Start point

Train Station

Get Directions

4.17 km

L'Arc

Lake

25.9 km

Summit and View of Aussois

Highlight • Summit

It is a good variation on the main road on the other side of the Arc: nice road, much less traffic, passage through Aussois, view over a good part of the Maurienne ... Disadvantage: add 400m of d +. They are clearly worth it!

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60.4 km

Bonneval-sur-Arc

Highlight • Other

Classified as "The most beautiful villages in France", the village and winter sports resort of Bonneval-sur-Arc welcomes its visitors in magnificent stone chalets, covered with lauzes, which perpetuate the tradition.

Between 1,800 and 3,000 meters above sea level, the village is a haven of peace and serenity at the foot of the Col de l'Iseran as well as on the borders of the Vanoise and Grand Paradis national parks in the Northern Alps.

The commercial offer is wide. The village becomes an essential stopover for itinerants who follow in the footsteps of the GR 5.

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70.0 km

Bonneval side of Iseran

Highlight • Mountain Pass

Starting from Bonneval sur Arc (south side) fill up with water at the fountains of this magnificent mountain village. The climb is very trying, you have to make the most of the two flats at 1/3 and 2/3 to catch your breath because from the "snow bridge" fatigue and altitude are felt for the last 3 kilometers.

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73.7 km

Iseran Pass

Highlight • Mountain Pass

Located at 2770 meters above sea level, the Col d'Iseran is the highest European asphalt pass. There are magnificent views of Val-d'Isère and the Maurienne. Egan Bernal won his Tour de France 2019 with tremendous action at this summit.

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99.2 km

Col de la Madeleine

Highlight • Mountain Pass

The Col de la Madeleine from Lanslebourg-Mont-Cenis is 6.7 kilometers long with a total elevation gain of 347 meters. The average gradient is 5.2% with maximum gradients of 10%. It connects Lanslebourg-Mont-Cenis with Bonneval-sur-Arc.

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123 km

Barrière de L'Esseillon

Highlight • Historical Site

Fort-Victor Emmanuel, better known as the Barrière de L'Esseillon, is a series of five forts built in the 19th century on the rocky lock or "rocky close" which closes the upper valley of the Arc like a padlock. These forts served to protect the kingdom of Piedmont-Sardinia from a possible French invasion. Borders change but buildings remain. Each of the forts bears the name of a member of the Savoy family, the most famous being that of Victor Emmanuel.

Be careful not to confuse it with the innumerable Forts Vauban which dot the borders of the current French territory.

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