Refine your search for walks in Sépie (cours d'eau) - Affluent de la Gervanne
Le Taillefer from L'Escoulin

A circular walk starting from the village of L'Escoulin in the wild Sépie valley, with the highest point being the Taillefer (932 m). The route, which follows little-used paths and trails, is often through forest with beautiful views of the Drôme mountains (Bec Pointu, Tête de la Dame and the southern edge of the Vercors, Glandasse, Trois Becs).
Tour du Taillefer from L'Escoulin

This lovely hike goes all the way around Taillefer, passing through Saint-Andéol-en-Quint, Vachères-en-Quint and the two Col de Vachères (north and south). Beautiful views of Vercors, Bec Pointu, Tête de la Dame, Montagne de Glandasse and Les 3 Becs.
Good news at the end of the route: you no longer have to wade through the Sépie river, but can cross via a very pretty footbridge!
Plan de Baix, Gorges de la Gervanne, Cascade de la Druise, Croix du Vellan

This is a very beautiful hike, but should only be undertaken in very good weather. The first part follows the course of the Gervanne river, crossing numerous fords and wading through water, until you reach the magnificent Druise waterfall. The second part leads, via theGR®9, to the plateau and the Croix de Vellan overlooking the small village of Plan de Baix, where a 360° view allows you to admire some of the peaks of the Vercors and Baronnies.