The route
PTL (La Petite Trotte à Léon)
A multi-day expedition around Mont-Blanc, through three countries, on a route that changes every year: 293 km, 23,373 m of climbing.
Drawn with a pen, line by line
- Distance
- 293.4 km
- Elevation gain
- 23,373 m
- Highest point
- 3,157 m
- Summits, passes and villages
- 163
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.
02
Reading the route
Every year, this race's route changes: rather than a fixed course, it's an orienteering-style challenge around the Mont-Blanc massif, through three countries. In Chamonix, the start is given at 8 am.
The route first climbs to Mont Buet, then Les Grandes Otanes, before reaching the Cabane du Trient and Champex-Lac, already in Switzerland.
It continues to Le Catogne, climbs to Pointe de Boveire, at 3,157 m, then crosses the Col de Crête Sèche before entering Italy, toward Courmayeur.
The route returns to France via the Col des Bouquetins, then Les Houches, to the finish back in Chamonix. The cutoff is 151 hours.
Paths and places: © OpenStreetMap contributors. Altitudes measured on the route.
03 · Your poster
The route, drawn with a pen
The relief of the course, a loop around Mont-Blanc, takes shape as contour lines: our pen plotter draws it with a pen, line by line. Your finisher name and time go in the cartouche, in A4, A3 or A2.
Shipped from our workshop in Le Bouscat
04
Official information
- 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
- Figures and text: Plotrek
- Plotrek is not a partner of, or affiliated with, the race organiser.