Highlight • Summit
Hiking
5.0
(9)
Mountaineering
5.0
(1)
Roc Cornafion Summit is a prominent peak in the Vercors Massif, part of the French Alps, located in the Isère department of the Auvergne-Rhône-Alpes region. Standing at an elevation of 2,049 meters, this natural monument is renowned for its distinctive "Urgonian" rocky ridge and complex geological features. It forms a significant part of the Vercors' eastern ridge, situated between Col Vert to the south and Rochers de l'Ours to the north.
What truly captivates visitors to Roc Cornafion Summit is…
Routes leading to this Highlight may be dangerous
Routes may comprise technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.
This Highlight is in a protected area
Please check local regulations for:
Tips
July 15, 2023
Mountaineering

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Nearby routes
Best routes near Roc Cornafion Summit

5.0
(5)
80
hikers
15.6km
06:36
960m
960m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.0
(5)
39
hikers
24.9km
10:28
1,390m
1,390m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

5.0
(4)
35
hikers
13.1km
05:52
920m
920m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Details
Informations
Elevation 2,100 m
Weather
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Tuesday 2 June
19°C
13°C
36 %
Additional weather tips
Max wind speed: 10.0 km/h
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The ascent to Roc Cornafion Summit is known for its challenging terrain. Hikers should be prepared for steep sections, narrow paths, and some light climbing or 'putting hands on' sections, particularly in the final couloir. Certain routes, such as the 'Sentier des Deux Cols,' are exposed and not recommended for those with vertigo or during wet weather due to the risk of slipping. Good physical condition and sure-footedness are crucial.
Yes, for experienced hikers seeking a significant challenge, routes like the one from Prélenfrey via Col Vert are highly recommended. This typically takes around 5 hours and involves an 800-meter elevation gain. Loop trails incorporating Col Vert and Col de l'Arc also offer extensive exploration of the Vercors eastern ridge and are considered very difficult, requiring careful planning.
Roc Cornafion is characterized by its distinctive 'Urgonian' rocky ridge, which is part of a larger geological structure within the Vercors Massif. The area exhibits complex geological features, including the Cornafion synclinal and various thrust faults. The eastern slope, in particular, displays a unique structural surface resulting from erosion, making it a fascinating spot for geology enthusiasts.
Yes, in winter, the plateau and shoulder of Cornafion are accessible for ski touring, snowshoeing, and splitboarding. These offer moderate-level excursions with panoramic views of the Vercors Massif. However, winter conditions require appropriate gear and experience, and the summit itself can be more challenging and potentially dangerous.
The duration of a hike to Roc Cornafion Summit varies significantly depending on the chosen route and your fitness level. For example, the route from Prélenfrey via Col Vert typically takes approximately 5 hours for experienced hikers, involving an 800-meter elevation gain.
For winter hiking or sports at Roc Cornafion Summit, it's essential to dress in layers. You'll need warm, waterproof, and windproof outer layers, insulated mid-layers, and moisture-wicking base layers. Appropriate winter hiking boots, gaiters, gloves, a warm hat, and sunglasses are also crucial. Depending on conditions, snowshoes, ski touring equipment, or crampons and an ice axe might be necessary.
While Roc Cornafion offers unique panoramic views, the broader Vercors Massif has many trails. For potentially less crowded options with stunning vistas, consider exploring other peaks or ridges within the Vercors that might be less frequented, especially during peak season. Researching routes to nearby summits or exploring different sections of the Vercors plateau could provide a rewarding experience with fewer people.
Roc Cornafion Summit is located in a natural, mountainous area. While there are no direct amenities on the summit itself, you can find cafes, restaurants, and various accommodation options in nearby towns and villages such as Villard-de-Lans or Prélenfrey. These serve as excellent bases for exploring the Vercors Massif.
The ascent to Roc Cornafion Summit is generally considered challenging and not ideal for young children or those with limited hiking experience due to steep, exposed sections and light climbing. For families or those with dogs, it's advisable to explore the more accessible trails on the Vercors plateau or lower-elevation routes in the surrounding area, which offer beautiful scenery without the technical difficulties of the summit ascent.
Generally, no specific permit is required for hiking Roc Cornafion Summit. However, it's always good practice to check local regulations, especially if you plan to engage in activities like climbing or paragliding, which might have specific requirements or designated zones. Always respect protected areas and follow Leave No Trace principles.
Even without reaching the very top, the Vercors plateau and the shoulders leading up to Roc Cornafion offer magnificent views. Areas around Col Vert and Col de l'Arc provide extensive panoramas of the Vercors, Chartreuse, and Belledonne ranges. These spots can be more accessible while still delivering breathtaking vistas.