4.1
(5)
36
riders
4
rides
Gravel biking around Hostun offers diverse terrain at the foothills of the Vercors massif, within the Drôme des Collines. The region features a varied topography, ranging from the Isère plain to higher elevations, providing a mix of gentle lowlands and challenging inclines. This area is characterized by limestone cliffs, verdant forests, and picturesque valleys, with parts included in the European Natura 2000 network for biodiversity preservation. Gravel bike trails Hostun allow riders to explore intimate routes between mountains, forests, and…
Last updated: October 3, 2026
9
riders
48.5km
03:30
650m
650m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
4
riders
34.8km
02:26
640m
640m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
3.5
(2)
6
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
49.0km
04:08
1,460m
1,460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Prepare to experience one of the most spectacular and exciting road routes in Europe! The Combe Laval road, nestled in the Vercors massif, is a true engineering masterpiece of the 19th century. Also known as the "road of dizziness," it winds for about 4 kilometers literally carved into the limestone rock, offering passages through suggestive tunnels and natural balconies with breathtaking drops that will take your breath away.
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Get ready to experience one of the most spectacular and exciting road routes in Europe! The Combe Laval road, nestled in the Vercors massif, is a true masterpiece of 19th-century engineering. Also known as "the road of dizziness," it winds for about 4 kilometers literally carved into the limestone rock, offering passages through suggestive tunnels and natural balconies with breathtaking overhangs that will leave you breathless.
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The Col de la Machine (1,011 m) is one of the most spectacular and famous access gates to the entire Vercors massif. World-renowned for being the highest point of the legendary Combe Laval, this pass offers a steady climb (around 6% average gradient from Saint-Jean-en-Royans) that winds through a dense and majestic forest.
9
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La Combe Laval is one of the most spectacular scenic roads in the Vercors massif. The D76 was carved into the rock face between the 19th and 20th centuries and passes through a succession of tunnels, ledges, and sections suspended over the valley.
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After a long section of "classic" pass, we suddenly find ourselves on the side of a cliff with a majestic view 😍. The valley is not very long but magnificent. Many nooks and crannies to stop and take a photo.
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Former tower of the first city wall built in the 11th and 12th centuries. It was chosen to house, in the 15th century, a hammering automaton that tells the time: the Jacquemart.
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A true must-see in Vercors
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Beautiful view of Ombleze
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Gravel biking around Hostun offers a diverse landscape, from the gentle lowlands of the Isère plain to the more challenging inclines of the Vercors foothills. You'll encounter a mix of paved roads, unpaved paths, and technical trails, characterized by limestone cliffs, verdant forests, and picturesque valleys. The region's varied topography provides routes with reasonable elevation changes, allowing for exploration of hidden small roads and accessible tracks.
The gravel bike routes listed in this guide, such as the Cirque of Combe Laval – Machine Pass loop from Saint-Jean-en-Royans and the Machine Pass – Combe Laval loop from Pont-en-Royans, are generally rated as difficult due to significant elevation gains and distances. While the region offers varied terrain, these specific routes are best suited for experienced gravel bikers looking for a challenge.
The gravel biking routes around Hostun are highly regarded by the komoot community, with an average rating of 4.7 stars from over 10 reviews. Riders often praise the varied terrain, the stunning views of the Vercors foothills, and the opportunity to explore intimate routes through mountains, forests, and charming villages.
Yes, several routes offer access to significant landmarks and viewpoints. For instance, the area features the dramatic Cirque of Combe Laval and the challenging Machine Pass, both renowned for their scenic beauty. You can also explore the historic village of Pont-en-Royans, known for its suspended houses, which is often a starting point or point of interest on local rides.
While not directly on every gravel route, the region around Hostun is rich in natural beauty. You might find opportunities to visit the White Waterfall, which is a notable natural highlight in the vicinity, offering a refreshing stop if you plan your route accordingly.
The Drôme region, including Hostun, is ideal for gravel biking from spring through autumn. These seasons offer pleasant temperatures and vibrant landscapes, with spring bringing blooming fields and autumn showcasing rich foliage. Winter can be challenging due to higher elevations and potential snow in the Vercors foothills.
The routes highlighted in this guide are generally rated as difficult, making them less suitable for young children or beginner family riders. However, the broader Drôme region offers a variety of cycling options, including the Greenway Valley Isère (V63), which connects to the ViaRhôna, providing more accessible paths for family-friendly cycling experiences.
Many natural areas and trails in the Drôme des Collines are dog-friendly, especially if your dog is accustomed to long rides and varied terrain. However, it's always advisable to keep dogs on a leash, particularly in areas with wildlife or near agricultural land, and to check specific regulations for any protected areas within the Vercors Regional Natural Park.
For tours starting from specific towns, such as the View on arthemonay – Montmiral church loop from Romans - Bourg-de-Péage, you can typically find public parking in the town centers or near trailheads. For routes originating in smaller villages like Saint-Jean-en-Royans or Pont-en-Royans, look for designated parking areas or inquire locally about suitable spots for cyclists.
Hostun is served by local bus services, connecting it to larger towns like Romans-sur-Isère. While some regional buses may accommodate bicycles, it's essential to check with the specific transport provider in advance regarding their bike carriage policies and any associated fees, as space can be limited, especially during peak times.
Hostun and the surrounding villages like Pont-en-Royans and Saint-Jean-en-Royans offer a selection of cafes and restaurants where you can refuel. These establishments often cater to cyclists, providing a welcoming atmosphere after a ride. It's a great way to experience local cuisine and hospitality.
Generally, no special permits are required for gravel biking on public roads and marked trails in the Drôme region. However, parts of Hostun are within the European Natura 2000 network and at the foot of the Vercors Regional Natural Park. Always respect local signage, private property, and environmental regulations to preserve the natural beauty of the area.
Hostun and its surroundings are a hub for outdoor enthusiasts. Beyond gravel biking, you can enjoy extensive hiking on trails like the GRP Tour des Monts du Matin / Vercors, mountain biking on the VTT/FFC Royans Vercors base, climbing in areas like Rochefort-Samson, and canyoning in the Ecouges. The area also offers cultural attractions like the 11th-century church in Saint-Martin-d'Hostun and nearby caves.


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