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Mountain Hikes
France
Auvergne Rhône Alpes
Chambéry

Attignat-Oncin

The best mountain hikes around Attignat-Oncin

4.3

(5)

28

hikers

2

hikes

Mountaineering routes around Attignat-Oncin are situated in a mountainous region, characterized by significant elevation changes and varied terrain. The area features prominent peaks and passes, offering challenging ascents and panoramic views. These routes often traverse through natural parklands, providing a mix of forested sections and open mountain landscapes. The region's geography makes it suitable for experienced mountaineers seeking demanding trails.

Best mountaineering routes around Attignat-Oncin

  • The most popular mountaineering route is Mount Outheran - 1686 m loop from Le Désert…

Last updated: May 8, 2026

5.0

(2)

9

hikers

#1.

Mount Outheran – The Entremont Desert loop from Le Désert d'Entremont

9.43km

03:39

480m

480m

Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard
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Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

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Tips from the Community

Guillaume BARBIER
November 9, 2025, Mont Outheran

Caution: This section involves a semi-stop and traverse along a cliff face without a handrail. Not recommended for people prone to vertigo or for children.

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Ulrich
August 7, 2025, Col du Granier

Warning: The climb from the east side is extremely steep! An average gradient of around 10% over 9-10 km.

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Very beautiful view of the 2 lakes 👌

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SimD
May 2, 2025, Col du Granier

Very good and quite accessible as a pass. Be careful of overtaking cars.

Translated by Google

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2

From Saint Pierre you pass through Entrement le veux and arrive at the top of Col de Granier, if you take the first right towards Col de Marcieu until Saint Hillaire de Touvet and descend into the valley to Grenoble, very calm, rolling and bucolic

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Darphin
March 26, 2025, Tracol

Small pass easily accessible from the Ruchère Nordic Center, via a snowshoe trail. The path is often quite well-packed, so snowshoes should remain on your bag.

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Fany passet
March 19, 2025, Mont Outheran

Done today, lots of snow at the top, the climbing sections are dry and the descent too

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Deki Fourcin
November 15, 2024, Petit Som

Magnificent summit above the Col de la Ruchère, offering you one of the most beautiful panoramas of the Chartreuse.

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Frequently Asked Questions

What is the typical difficulty level for mountaineering routes around Attignat-Oncin?

The mountaineering routes around Attignat-Oncin are primarily designed for experienced mountaineers. Most of the trails are classified as difficult, featuring significant elevation changes and challenging terrain. There is one moderate option, the Tracol loop from Chartreuse Regional Nature Park, which offers a slightly less demanding experience.

What kind of distances and elevation gains can I expect on these mountaineering routes?

The routes vary significantly in length and ascent. You can find shorter, challenging loops like the Pointe de la Gorgeat – Mont Joigny loop from Col du Granier, which covers 7.2 km with over 400 meters of elevation gain. For a longer, more strenuous adventure, the Belvedere Montgrelle – Electric pole lookout loop from Lépin-le-Lac spans nearly 20 km with over 1200 meters of ascent.

Are there any circular mountaineering routes in the Attignat-Oncin area?

Yes, several mountaineering routes around Attignat-Oncin are circular, allowing you to start and end at the same point. Examples include the Mount Outheran - 1686 m loop from Le Désert d'Entremont, the Ruchère Pass – Petit Som loop from Chartreuse Regional Nature Park, and the Tracol loop from Chartreuse Regional Nature Park.

What is the best time of year for mountaineering in Attignat-Oncin?

The mountainous terrain around Attignat-Oncin is best explored during the warmer months, typically from late spring to early autumn. During this period, trails are generally clear of snow, and weather conditions are more stable, offering better visibility and safer passage through the high-altitude sections and passes.

Are there any viewpoints or scenic spots along the mountaineering trails?

Absolutely. The region is known for its panoramic views. Many routes offer expansive vistas, such as those found on the Belvedere Montgrelle – Electric pole lookout loop from Lépin-le-Lac. You can also visit specific highlights like the Étincelle Viewpoint or the Mont Grêle Viewpoint for stunning mountain scenery.

What do other mountaineers enjoy most about the routes in Attignat-Oncin?

The mountaineering routes in Attignat-Oncin are highly rated by the komoot community, with an average score of 4.0 stars. Reviewers often praise the challenging ascents, the rewarding panoramic mountain views, and the diverse landscapes that include both forested sections and open mountain environments.

Are there any natural attractions or landmarks to see near the mountaineering routes?

Yes, the area boasts several natural attractions. You might encounter the serene Lac d'Aiguebelette, the historic Old Saint-Martin Bridge, or the flowing Grenant Stream. The routes also traverse through prominent mountain passes like Épine Pass and Saint-Michel Pass.

Can I find any less-trafficked or 'hidden gem' mountaineering routes in the area?

While the region is popular for its challenging trails, routes like the Pointe de la Gorgeat – Mont Joigny loop from Col du Granier offer a robust mountaineering experience that might feel more secluded compared to the most popular options. Exploring trails that are not highlighted in the main guide can often lead to quieter discoveries.

What are the prominent peaks and passes in the Attignat-Oncin region?

The region is characterized by significant peaks and passes that define its mountaineering landscape. Notable summits include Mount Outheran and La Cochette Cross. Key mountain passes like Épine Pass and Saint-Michel Pass are also integral to the area's challenging routes.

Is mountaineering around Attignat-Oncin suitable for families with children?

Given that most mountaineering routes around Attignat-Oncin are classified as difficult and involve significant elevation changes and varied terrain, they are generally not recommended for families with young children or beginners. These trails are best suited for experienced mountaineers seeking demanding challenges.

How many mountaineering routes are available in Attignat-Oncin?

There are several mountaineering routes available around Attignat-Oncin, offering a range of challenging experiences. Komoot currently lists 5 distinct routes in this guide, with more options available for exploration in the wider region.

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