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Baisse de Détroit Supertour

Baisse de Détroit

The Baisse de Détroit offers a true Haute-Provence experience. The route consists almost entirely of singletrack and could be considered a nearly perfect mountain bike tour.

Description

From Colmars, you climb a good distance up the small mountain pass road toward Col de Champs. Along the way, you pass the Ratery station at 1,700 meters above sea level and continue climbing slightly until a singletrack branches off to the right in a left-hand switchback. This trail is marked as part of the Transverdon Route and leads down as a wonderful singletrack into the Bressenge Valley, which ascends to the Lacs de Lignin. The ascent takes place entirely on easily rideable singletrack. Only one section is slightly steeper; there, a few mountain bikers may need to push their bikes for a short distance. With an e-mountain bike, the entire ascent is easily rideable. This route takes you to the stunning Lignin Plateau, where you’ll feel as though you’re far away from civilization. A fantastic backdrop, but the climb isn’t quite over yet. There are another 200 meters of elevation gain to the Baisse de Détroit, still on trails and still easily rideable, apart from a few short sections. 

The Baisse de Détroit is the starting point of the spectacular descent on the west side of the pass. At first, the trail winds somewhat ruggedly through a scree field; afterward, you keep to the right and ride across phenomenal plateaus, past whimsical rock formations, all the way to the Plateau de Pisse-en l’Air. Now you leave the open terrain and dive into the forest on an S1 trail. You’ll ride down quickly and smoothly to the Baisse de l’Orgéas, where the next spectacular section begins. A solid, though at times somewhat bumpy, trail leads through steep and open terrain down to Ondres. This small mountain village is the starting point of the final super trail, which begins just below the village. A top-notch S2 trail leads down to the valley floor near Beauvezer, from where you ride five kilometers back to Colmars along the main road.

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Map & GPX-Track

The map is only available to Ride subscribers.
The Ride-Subscription is available at ride-mtb.com/abo

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45 km

1670 m

1670 m

1153 above sea level

2463 above sea level

1 day

Colmars

Colmars

3788

well suited

Thomas Giger
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Written by Matthias Frei on 10. August 2026

It really was an amazing tour! We did it in early August 2026. It’s worth noting that some sections are a bit exposed—which actually makes it even more fun…

Portrait Thomas Giger

About the author: Thomas Giger

Thomas Giger has been the editor of Ride MTB since 2002 and is a regular online and print author. Over the years, he has specialized in tourism topics and is particularly well known for his blog-style columns. He is also one of Ride MTB's active tour authors.

Thomas Giger has been the editor of Ride MTB since 2002 and has had a significant influence on the tour database. His focus is on single trail tours. There are few who know the trails in Switzerland as well as he does. However, his areas of expertise also include Aosta, the French Western Alps, and the whole of South Tyrol.

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Note: This content has been automatically translated from German. Please report any incorrect translations.