Col de la Lose Trail via Prariond Valley
Col de la Lose Trail via Prariond Valley
4.9
(27)
362
hikers
05:53
12.3km
870m
Hiking
Hike the difficult 7.7-mile Vallon de Prariond to Col de la Lose trail in Vanoise National Park, gaining 2856 feet for alpine views.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
2.22 km
Highlight • Gorge
Tip by
3.00 km
Highlight • Rest Area
Translated by Google •
Tip by
5.87 km
Highlight • Lake
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Tip by
6.10 km
Highlight • Mountain Pass
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Tip by
10.4 km
Highlight • Other
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Tip by
12.3 km
End point
Parking
Way Types & Surfaces
Way Types
12.2 km
115 m
Surfaces
12.2 km
107 m
< 100 m
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Elevation
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Weather
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Sunday 24 May
17°C
4°C
21 %
Additional weather tips
Max wind speed: 3.0 km/h
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This route was planned by komoot.
This hike is classified as difficult, requiring good physical fitness, sure-footedness, and appropriate footwear. The trail involves a significant ascent, particularly as you approach the Colle della Losa, and some sections may have residual snow (névés) even in season.
The trail begins with a steep but well-maintained ascent above the impressive Gorges of the Isère. It then opens into the beautiful Vallon de Prariond, characterized by high alpine meadows. The path to the Colle della Losa involves zig-zagging sections before becoming notably steeper. Expect varied alpine terrain, including rocky paths and potentially some less distinct sections near the pass.
Hikers will experience diverse and breathtaking alpine scenery. Key highlights include the deep Gorges of the Isère, the 'green paradise' of the Vallon de Prariond with views of a glacier, and a cascading waterfall. Just before the final push to the pass, you'll pass a small snowy lake. From the Colle della Losa, you'll be rewarded with panoramic views of the French side, the Glacier des Sources de l'Isère, and the majestic Grand Paradiso in Italy.
Yes, the Vallon de Prariond is known as a sanctuary for chamois, ibex, and marmots. Keeping a keen eye on the landscape can lead to rewarding wildlife observations.
The hike typically begins near Val d'Isère. While specific parking details are not provided, trailheads in this region often have designated parking areas. It's advisable to check local signage or Val d'Isère tourist information for the most current parking arrangements near the start of the Vallon de Prariond.
The Prariond Refuge serves as a welcome break point along the route. It typically offers food and drink services, making it a good spot for refreshments during your hike. It's recommended to check their operating hours, especially outside of peak season.
The optimal hiking season for this trail is from June through fall. During this period, the weather is generally more favorable, and the Vanoise National Park is known for its vibrant displays of alpine flowers.
Vanoise National Park is a protected area, and while specific hiking permits are not generally required for day hikes, it's crucial to respect park regulations. These typically include rules against littering, disturbing wildlife, picking flowers, and staying on marked trails. There are no entrance fees for the park itself. Always check the official Vanoise National Park website for the latest regulations before your visit.
Regulations regarding dogs in Vanoise National Park can be strict to protect wildlife. Generally, dogs are not permitted, even on a leash, in the core zone of the National Park. It's essential to verify the most current and specific regulations for the Vallon de Prariond to Col de la Lose route directly with Vanoise National Park authorities before planning your hike with a dog.
This specific route, Vallon de Prariond to Col de la Lose, is typically an out-and-back trail. You will retrace your steps from the Colle della Losa back to your starting point.
Yes, the route also passes through sections of the Route des Grandes Alpes à vélo, étape 6, Val d'Isère / Val-Cenis.
This beautiful Vanoise park once again kept its promises with this magnificent hike in the Isère gorges (with the sun just pointing the tip of its nose in front of me), then the Prariond valley before climbing the Col de la Lose with magnificent views of the surrounding glaciers, and the beautiful lake on the Italian side. I climbed above the pass, on the Italian side for a superb view of the 3 small lakes of the Loses stream. The big clouds at the pass offered additional relief to the view. Lots of marmots on the way up, I was able to take some beautiful photos, and beautiful edelweiss near the large waterfall. Absolutely superb!