Pagnol told the story of the Provence of dry hills and cicadas. The series was missing one volume: the one where the Blanche valley disappears under a meter of snow and you run through it!
In the Blanche valley, the color is no metaphor: at the end of January, it covers the larches, the alpine pastures and even the road signs ❄️. Set course for the Alpes-de-Haute-Provence, between the village of Selonnet (1,062 m) and the heights of Seyne-les-Alpes, in a corner of the Southern Alps that even Provençals forget to mention 🗺️. The sky stays Provençal, the thermometer much less so: the neighboring weather station at Montclar has already recorded -19.2°C, so put your gloves on before pulling out your phone at the summit 🥶. No one will promise you powder or blue skies; the mountain will decide on Sunday morning.
The Trans'Blanche lives up to its name: a crossing, never a loop. On the long course, you leave Selonnet and climb toward the Chabanon resort (1,612 m), then you drop over toward the Fanget pass (1,459 m) and its Nordic area, before reaching the snow front of Grand Puy, above Seyne 🏔️. Zero ski lifts on the plateau. The only tow available is your calves 🦵. Between the larch forests and the wind-swept alpine pastures, you get a panorama of the Blanche range, which lines up its peaks from Dormillouse (2,505 m) to the Tête de l'Estrop (2,961 m) 🌲.
The concept fits in one sentence: link in a single go three winter sports sites that the valley keeps alive each in its own corner ⛷️. Chabanon still runs, Le Fanget lays out its Nordic trails, and Le Grand Puy saw its lifts shut down in 2024. The race gives it back one Sunday of life. Behind the organization, Team Provence Endurance already puts on the Blayeul Vertical Kilometer and the Digne-les-Bains Trail: people who know the terrain of the area by heart 🎒. Two distances are on the program, the 25 km for the full crossing and the "Short Blanche" over 16 km for those who prefer the second half, with shuttles at the start and bib pick-up at the finish 🚐.
Before or after the effort, Seyne-les-Alpes is well worth a visit with its Vauban fort clinging to the hillside and its past as the mule capital, an activity that saw hundreds of animals born each year between the wars 🐴. In Selonnet, the bell tower occupies a former tower of the castle of Lesdiguières. The last Constable of France was among the lords of the place 🏰. A marked trail leads to the Grosse Pierre. This erratic boulder weighs more than 500 tons, left there by a glacier 🪨. As for personal refueling, the village's apples and potatoes long made the reputation of the local markets 🍎. The bistrot de pays serves the hot version. The cheese specialties of the Chalet finish the job, at the foot of the Grand Puy slopes 🫕.
Seyne spent a century raising the best mules in the Southern Alps, tireless animals able to string together mountain passes without flinching. By crossing the line at Grand Puy, you will have proven that the breed has not disappeared and that the Trans’Blanche lives up to its name.
The long distance starts down in the village of Selonnet, at 1,062 m ⛰️. The first kilometers climb steeply toward Chabanon and its 1,612 m, about 550 m of climbing right from the start: it hurts before you've even taken your jacket off 💪. The route then joins the ridge of the "Short Blanche", tips over toward the Col du Fanget (1,459 m) and links sections of singletrack through the woods, sometimes frozen in the early morning 🧊. The panorama opens onto the alpine pastures, with the Blanche range keeping you company from start to finish 🌅. Two aid stations are spread along the course, compared with just one on the short format: enough to manage your effort without overloading your pack. The final descent plunges toward Grand Puy, where the results are posted in front of the restaurant Le Chalet 🥇. A complete crossing of the valley, from farmland to snow line.
The "Short Blanche" drops you right at altitude: the shuttle climbs up to Chabanon and lets you off at the snow front, at 1,612 m 📍. So you start from the top, among the larches of the ski area, before plunging toward the Fanget sector through the alpine pastures linking the two resorts. The Nordic section then unfolds along fast-rolling forest trails, well packed down by successive passes, with the Seyne balconies on your right 🪵. The final drop takes you to the Grand Puy snow front, at around 1,370 m: more descent than climbing overall, so your quads will demand their due 👟. A short format on paper, demanding underfoot, perfect for a first outing on the snow.
Bib pick-up takes place only on the morning of the race, Sunday, January 31, 2027, at the Grand Puy resort, in front of the Le Chalet restaurant, from 7:00 to 8:30 a.m. Shuttles then take runners to their respective start lines.
Both races start on Sunday, January 31, 2027 from two separate locations.
The 25 km starts from Selonnet at 9:00 a.m.
The 16 km starts from the Chabanon resort at 10:00 a.m.
No, a medical certificate is not required. You must present either your valid license or a PPS certificate dated less than one year before the race date. Both can be sent by email before the event or shown on site.
2027 info coming soon
Prices vary depending on the distance and the registration period.
For the 16 km:
€20 from Tuesday, November 10, 2026 to Friday, December 11, 2026.
€22 until Thursday, January 28, 2027.
€25 on site, subject to bib availability.
For the 25 km:
€29 from Tuesday, November 10, 2026 to Friday, December 11, 2026.
€32 until Thursday, January 28, 2027.
€35 on site, subject to bib availability.
2027 info coming soon.
The number of aid stations depends on your distance.
Two aid stations are set up on the 25 km course.
One aid station is set up on the 16 km course.
Mandatory gear depends on the weather conditions on the day. Depending on the situation, a survival blanket and a waterproof jacket may be required at the start. The organizers will announce their decision before the race.
Your registration includes shuttle transport from the Grand Puy resort to your start line, as well as the aid stations planned along your course.
You first go to the Grand Puy resort, located in the municipality of Seyne, at 617 route du Grand-Puy, then you take the shuttle to your start line. The resort is about 45 minutes by road from Digne-les-Bains, Gap and Barcelonnette. The nearest train station is Gap, connected to Seyne by coach. The organizers encourage carpooling and help participants get in touch with one another.
The race takes place at the end of January, between 1,062 m and 1,612 m in altitude, in a mountain climate. Sub-zero temperatures are common at the start, and the nearby Montclar weather station has already recorded -19.2°C. Bring gloves, a hat and a jacket suited to the cold, as well as shoes with good grip on snow.
The event is organized by the Team Provence Endurance association. You can reach them via the form available on trailsbytpe.fr.
You can apply via the contact form on the organizer's website, Trails by TPE.
You can check the race rules here
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