Tour of Ambel

This route is considered difficult, primarily due to its length and consistent climbing. The ascent from Die to Col du Rousset covers approximately 19.5 to 19.6 kilometers with an elevation gain of 862 to 866 meters. While the average gradient is around 4.4% to 6%, the sustained effort required makes it demanding, suitable for cyclists with good fitness.

The route offers diverse panoramas, transitioning from the mountainous Vercors atmosphere to the Provençal setting of the Drôme Valley, complete with lavender fields around Chamaloc. You'll experience impressive cliffs and gorges, and from the summit tunnel of Col de Rousset, an orientation table provides expansive views of the Diois countryside. Notable highlights include the Ascent from Die to Col du Rousset, the View of the Vercors Plateau, and the Col de la Bataille (1313 m).

The best time to cycle this route is during spring and summer. During these seasons, the weather is generally pleasant, and the roads are clear, allowing for the most enjoyable experience of the Vercors massif's natural beauty.

Vercors Regional Natural Park generally does not require specific entrance fees for cycling on its public roads. However, as a protected natural area, visitors are expected to respect the environment, stay on marked routes, and adhere to local regulations regarding wildlife and waste. There are no specific permits needed for this cycling route.

The route typically starts from the town of Die. You can find parking within Die before beginning your ascent towards Col du Rousset. This allows you to tackle the full climb from the valley floor.

Based on the tour data, the estimated duration for this racebike route is approximately 6 hours and 30 minutes (23,441 seconds). This duration accounts for the total distance of nearly 119 kilometers and the significant elevation gain.

No, this route is classified as difficult and is not recommended for beginner cyclists. The sustained climbing, significant elevation gain, and overall distance require a good level of fitness and experience with road cycling in mountainous terrain.

Yes, this route intersects with several other official trails. Notably, it covers a significant portion of Le Tour d'Ambel and also passes through sections of the P'tites Routes du Soleil, étape 10, Villard-de-Lans / Die, and Col de la Croix.

The Vercors massif is an unspoilt area rich in flora and wildlife. While cycling, you might spot various animals such as wild boars, deer, and different bird species. The roadsides are also adorned with diverse flowers, including lavender in spring.

A key feature of the Col du Rousset is the 769-meter-long tunnel at the summit, drilled in 1979, which facilitates passage. The natural pass at 1,367 meters is accessible by footpath and offers even more extensive views. The Col has also been featured three times in the Tour de France, highlighting its significance in the cycling world.

Yes, beyond the Col du Rousset, this route incorporates other significant mountain passes. You will also traverse the Col de la Chau, the Col de la Bataille (1313 m), and the Col de Bacchus, adding to the challenging and scenic nature of the ride.