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The route

100K'Aspe

104 km on an overnight loop through the Aspe valley, over passes and past mountain huts, 6,888 m of climbing along the way.

Poster 100K'Aspe, drawn with a pen

Drawn with a pen, line by line

Distance
104.4 km
Elevation gain
6,888 m
Highest point
2,036 m
Summits, passes and villages
59

01

The route in numbers

Indicative figures computed by Plotrek on its illustrative route, with altitudes from a terrain model. They may differ from the organiser's.

Distance104.4 km
Elevation gain6,888 m
Elevation loss6,889 m
Highest point2,036 mat km 78
Longest climb1,198 mfrom km 32 to km 42
Start altitude417 m
Finish altitude416 m
Named places59within 600 m of the route

02

Reading the route

5001,0001,5002,000
km 0km 26km 52km 78km 104.4

Overnight, this loop strings together the passes of the Aspe valley, on a route that never stays down for long before climbing again.

9 pm, in Bedous, Place François Saraillé: night has barely fallen when it all begins. The route first climbs to the Plateau d'Ourdinse, then drops to the village of Aydius.

It climbs back to the Col de Bergout, crosses the Col de Bouésou, then passes the Refuge de l'Abérouat, before reaching the route's highest elevation.

The route drops through Lauzart before returning to Bedous for the finish. 24 hours, not a minute more, for the overnight loop.

Paths and places: © OpenStreetMap contributors. Altitudes measured on the route.

Poster 100K'Aspe, drawn with a pen

03 · Your poster

The route, drawn with a pen

The relief of the course, a loop from Bedous, takes shape as contour lines: our pen plotter draws it with a pen, line by line. Your finisher name and time go in the title block, in A4, A3 or A2.

Size
Personalise the poster · €89

Shipped from our workshop in Le Bouscat

04

Questions about the route

Updated Route and text: Plotrek workshop (Fabrice Jolivet)

100K'Aspe: How long is it, and how much climbing?

The organiser announces 100 km for the 2026 edition. Plotrek's illustrative route, redrawn on OpenStreetMap paths, measures 104.4 km and 6,888 m of gain. It is a loop, with Bedous as start and finish, Refuge de l'Abérouat at km 57.4 and Lauzart at km 87.9.

Organiser · 2026 edition
100 km
trail-montanaspe.com ↗
Plotrek route
104.4 km · 6,888 m gain

100K'Aspe: What is the time limit?

24 hours for the 2026 edition, according to the organiser's website, read on 17 September 2026. That is the time allowed to cover the announced 100 km. Start: Bedous, at 9 pm. The time limit can change from one edition to the next; the organiser's rules prevail.

Organiser · 2026 edition
24 h
trail-montanaspe.com ↗

100K'Aspe: What is the highest point?

The highest point of Plotrek's route is at 2,036 m, at km 77.9. The high point lies between two landmarks of the course: Refuge de l'Abérouat (1,447 m, km 57.4) and Lauzart (847 m, km 87.9). The start and finish are both at 417 m.

Plotrek route
2,036 m · km 77.9

100K'Aspe: What is the longest climb?

1,198 m of elevation gain in one go, from km 31.7 to km 41.5 of Plotrek's route. No other climb on the 104.4 km loop is as long. Average gradient of this section: 12.2%. It accounts for 17% of the route's elevation gain. Altitudes measured on the route, with a terrain model.

Plotrek route
1,198 m · km 31.7 → 41.5

05

Official information

Next editionDate to be confirmed on the organiser's website.
Organiser's websitetrail-montanaspe.com ↗Registration, rules, schedule.
Sources for this page
  • Illustrative route redrawn by Plotrek from public data: the course announced by the organiser and OpenStreetMap paths. It is not the official course of the event.
  • Altitudes: terrain model AWS Terrain Tiles
  • Trails: IGN BD TOPO
  • Places: © OpenStreetMap contributors
  • Plotrek is not a partner of, or affiliated with, the race organiser.
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