Mountain passes around Saint-Auban are characterized by dramatic gorges and scenic balcony roads carved into the landscape. The region, situated in the French Maritime Alps, features towering limestone cliffs and sweeping mountain views, particularly along the Esteron River. These routes offer unique experiences for exploring the natural topography. Saint-Auban provides access to a network of passes that showcase the area's rugged beauty.
Last updated: June 26, 2026
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Very technical downhill road, the asphalt is in excellent condition.
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A very easy climb to pedal.
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The climb is easy, the asphalt is in excellent condition and there is little traffic.
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A hill not too difficult to climb with panoramic stretches. Asphalt in excellent condition.
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The Col de la Croix de Toutes Aures, often referred to as the Col de Toutes Aures, is a road pass on the Chambaran plateau on departmental road 518, located in the Isère department at 628 m altitude. Its name means "passage of all horizons" or "all winds" because its dominant position on the Chambaran plateau subjects it to numerous and changing wind currents, coming from all sides. In France, there are two other steps "de Tous Aures". The first is in the Alpes de Haute Provence and connects the Var valley with Lake Costillon. A second is located in Isère, in the foothills of the Vercors and connects Choranche with Presles. This pass is the meeting place for cyclists and hikers with the start of the Brion walk. (see the new Bièvre-Valloire map-guide)
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The Col du Buis, culminating at 1196 m, was a mule pass which was paved in the early 2000s and it must be believed that the DDE services did not look for an alternative to soften the slope, especially on the North side. from the hamlets of la Serre and les Venières. Because the pass simply displays an average of 10.6% over almost 4km, with ramps climbing to 17-18%! As much to say to you that you will pass the 4kms which will appear among the longest of your life... It is a really hard climb, which offers little respite. It is difficult to appreciate the landscape of this small wild pass. This is probably the reason why everyone only takes the picture once they have reached the top...
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The Col de Castellaras from the Pont du Loup is 3.7 kilometers long with an elevation gain of 178 meters. There is an average gradient of 4.8% with maximum gradients of 8%.
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The Col de Bleine from the Pont du Loup is 28.9 km long, with an elevation gain of 1238 m. There is an average gradient of 4.28% with maximum ramps of 7.5%.
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The mountain passes around Saint-Auban are characterized by dramatic gorges and scenic "balcony roads" carved into the landscape. You'll encounter towering limestone cliffs and sweeping mountain views, particularly along the Esteron River, offering a unique and exhilarating experience.
For extensive vistas, the Col de Bleine provides panoramic stretches over the hinterland. The Castellaras Pass offers beautiful views of the Loup Valley, and the Col de Pinpinier also boasts scenic views, especially from its higher altitude variant.
The Clue de Saint-Auban, often associated with the Col de Bleine, is considered a hidden gem, offering impressive natural beauty that many tourists might overlook. Additionally, the Col de Pinpinier is described as a remarkably solitary pass in the Gironde valley, making it a great discovery for those seeking less frequented routes.
The Clue de Saint-Auban is a breathtaking gorge carved by the Esteron River, featuring sheer rock walls and narrow passages. It's famous for its "balcony roads" literally cut into the cliffside, providing a thrilling adventure and showcasing dramatic canyon and mountain scenery with rock faces up to 150 meters high.
The area around Saint-Auban is excellent for various outdoor activities. You can explore numerous road cycling routes, enjoy hiking trails, or go running. Many routes incorporate the scenic mountain passes and gorges of the region.
Yes, Saint-Auban is a popular area for cycling. Routes like the "Azur Loop n°2: The Route of the Clues" and the "Col de Bleine – Lac de Thorenc loop" are excellent options for road cyclists, offering challenging climbs and scenic descents through the passes. You can find more details in the Road Cycling Routes around Saint-Auban guide.
Absolutely. The region offers a variety of hiking trails that often pass through or near the mountain passes. For example, you can find moderate hikes like the "Beautiful view – Aiglo Peak loop" or the "Clue de Saint-Auban – St Auban Gorge loop." Explore more options in the Hiking around Saint-Auban guide.
The mountain passes around Saint-Auban offer a range of difficulties, from scenic and intermediate to challenging. Some climbs, like the Castellaras Pass, are considered easy, while others, such as the Col du Buis, feature steep ramps up to 18% and are known for being very hard climbs.
The terrain varies, but you can expect well-maintained asphalt on many pass roads, making them suitable for cycling. Some areas, particularly in gorges like the Clue de Saint-Auban, feature roads carved directly into rock faces. For hiking, trails can range from easy paths to more technical routes, often with significant elevation changes and rocky sections.
Yes, the Col du Buis is notably challenging, with an average gradient of 10.6% over almost 4km and ramps climbing to 17-18%. It's considered a very hard climb that offers little respite, making it ideal for experienced cyclists seeking a demanding ascent.
Visitors frequently appreciate the stunning natural beauty, especially the dramatic gorges and panoramic views. The well-maintained roads and varied terrain also make it a favorite for cyclists and hikers. Many highlight the sense of discovery, particularly on less frequented passes like the Col de Pinpinier.
Yes, the Col de Bleine is an integral part of a longer, highly recommended scenic drive that showcases the best of the region's dramatic topography. It offers panoramic views and connects to other picturesque routes like the Clue d'Aiglun and the Clue de Gréolières, making for a captivating road trip experience.


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