KV, half-marathon? Call it what you like! But it does allow you to exceed 1000m of ascent and 20km.

This atypical circuit is unique in that it runs in a straight line rather than a loop, taking advantage of the return shuttles service for mountain bikes between Lalouvesc and St Félicien (transport on request from Les Cars du Vivarais).
The route is divided into 2 very distinct parts:
- The start alternates between ascents and descents for the first 10 kilometres.
- The second part is a long climb before arriving on the plateau before Lalouvesc.