Where does our data come from?
- Routes: the routes of the 38 GR trails as mapped by OpenStreetMap contributors (ODbL license). Variants and link paths are left out; the rare unmapped sections are flagged on each trail page.
- Altitudes and ascent: IGN’s RGE ALTI®, one point every 50 m along the trail. Ascent is calculated with a 10 m filter that removes terrain noise; it may differ slightly from the figures in the guidebooks.
- Stages: stage plan calculated by TrekGR. Each stage ends at a place where you can sleep and aims for around 6h of actual walking according to the DIN 33466 standard (4 km/h on the flat, 300 m/h uphill, 500 m/h downhill, excluding breaks).
- Accommodation, railway stations and water points: listed in OpenStreetMap near the route. They are not guaranteed to be open: always confirm before you set off.
- Practical information: official sources (FFRandonnée, national and regional parks, tourist offices, prefectures, transport operators), cited at the bottom of each page.
In total, 24,000 km of trails are described. GR trails are waymarked and maintained by the volunteers of the French Hiking Federation (FFRandonnée), which publishes the official guidebooks: TrekGR is an independent guide with no connection to the federation.
Updates
The data was last checked on November 10, 2026. Live updates (closures, weather, wildfire risk) are checked every day.
Independence
No establishment pays to appear on this site: accommodation is listed in route order. The site is funded by advertising, clearly labeled as such.
Spotted an error or something missing?
Write to us to report outdated information, a diversion or a missing place to stay.