4.7
(130)
3,758
riders
7
rides
Road cycling around Boulc, located in the Diois region of the Drôme department in Auvergne Rhône-Alpes, France, offers diverse landscapes for no traffic road cycling routes. The area is characterized by varied terrain, from deep gorges to mountain passes, within a mountainous territory at the intersection of the northern and southern Alps. Notable features include the impressive Saut de la Drôme and the geological site known as The Claps, alongside the Gorges des Gâts, considered one of France's most scenic roads.
Last updated: July 2, 2026
4.8
(8)
163
riders
57.0km
03:23
1,460m
1,460m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.7
(3)
93
riders
82.2km
04:33
1,780m
1,780m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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31
riders
110km
05:43
2,030m
2,030m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
11
riders
13.1km
00:39
160m
160m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5
riders
16.0km
00:50
240m
240m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
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Popular around Boulc
Building maintained in excellent condition.
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The ascent to Col de la Fromagère / Col de Pommerol from Rosans is located in the Hautes-Alpes region. This ascent is 6.6 km long, with a total elevation gain of 371 m. The average gradient of the ascent to Col de la Fromagère / Col de Pommerol from Rosans is 5.6%.
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Village surrounded by the Alps.
3
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Secondary road away from traffic. Asphalt in perfect condition.
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La Diga di Buesch (in French, Barrage du Buëch) is a small dam located on the Buëch river, in the department of Alpes-de-Haute-Provence / Hautes-Alpes, in southeastern France, near Laragne-Montéglin. It is best known as a landmark for cyclists and hikers in the Buëch valley.
15
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The Col de Carabès is a mountain pass located in the French Alps, on the border between the departments of Drôme and Hautes-Alpes.
13
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Road with breathtaking passages and views.
12
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The Diois region, where Boulc is located, offers a diverse range of terrain for road cyclists. You'll find routes winding through deep gorges, past impressive geological formations, and climbing towards scenic mountain passes. Expect varied landscapes, from the dramatic Gorges des Gâts with its tunnels and bridges, to more open valley views.
Yes, for experienced riders seeking a challenge, the area offers routes with significant elevation gain. A notable option is the Downhill from Col de de Pennes – Col de Pennes loop from Saint-Roman, which covers approximately 57.5 km with over 1,400 meters of ascent, providing a demanding yet rewarding experience.
Absolutely. Many routes in the area are classified as moderate, offering a good balance of distance and elevation. For example, the Archiane Cirque loop from Ville Basse is a moderate 44.8 km ride with around 650 meters of climbing, perfect for a solid day out without extreme difficulty.
Yes, all the routes listed in this guide are circular, meaning they start and end in the same general area. This allows for convenient planning without needing to arrange return transport. An example is the View of Pic de l'Aigle loop from Lus-la-Croix-Haute, a moderate 15.6 km loop.
The region is rich in natural beauty and viewpoints. You can experience the impressive Saut de la Drôme and the Claps, a spectacular waterfall and geological site. For panoramic vistas, consider routes that offer views of Pié Ferré (Le Dôme), which provides breathtaking views of the Diois valley.
The best time for road cycling in Boulc is generally from spring through autumn. During these seasons, the weather is typically more favorable, with milder temperatures and less chance of snow at higher elevations. Summer offers warm conditions, ideal for enjoying the refreshing reservoirs like the Claps, while spring and autumn provide beautiful scenery with fewer crowds.
While many routes in the Diois region involve significant climbs, some shorter, moderate options can be suitable for families with older children or those accustomed to road cycling. The View of Pic de l'Aigle loop from Lus-la-Croix-Haute, at 15.6 km with 230 meters of elevation, could be a good starting point for a family looking for a moderate ride.
Many of the routes start from villages or towns such as Saint-Roman, Ville Basse, or Lus-la-Croix-Haute. These locations typically offer public parking facilities where you can leave your vehicle before starting your ride. It's always advisable to check local signage for any parking restrictions.
The komoot community highly rates the road cycling experience around Boulc, with an average score of 4.7 out of 5 stars from 99 ratings. Cyclists often praise the stunning natural beauty, the quiet roads, and the rewarding climbs that lead to incredible views, making it a favorite for those seeking a peaceful yet challenging ride.
Yes, many routes pass through or near charming villages in the Diois region. For instance, the route Downhill from Col de de Pennes – Magnificent view loop from Saint-Roman starts from Saint-Roman, and other routes may pass through towns like Châtillon-en-Diois or Luc-en-Diois. These villages often have small cafes, bakeries, or shops where you can refuel and take a break.
The entire Diois region is considered a hidden gem for outdoor enthusiasts. While specific routes are well-loved, the quiet roads leading through areas like the Gorges des Gâts or towards the highest hamlets like Ravel et Ferriers offer a sense of discovery. These less-traveled paths provide a truly immersive experience in the natural beauty of the Drôme.


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