Dorches (rivière) - Affluent du Rhône walks

The section from La Charnay to Chalet d’Arvière is the fifth stage of the six-day walking tour “La GTJ from Mijoux”. The GR®9 enters the Ain department via Mijoux, before following the spectacular ridges of the Monts-Jura, passing through the Crêt de la Neige, the highest point of the range. It then descends towards Bellegarde-sur-Valserine, crosses the Retord plateau and climbs the Grand Colombier. The trail continues its route to Culoz and the Rhône Valley, before leaving the Ain to reach Savoie and continuing southwards. Part of the route passes through the Haute Chaîne du Jura National Nature Reserve, which is subject to specific regulations: dogs are prohibited, even when kept on a lead, as is camping in tents. Please respect these rules to preserve the richness of this exceptional environment.

Open from 1 April to 30 November – subject to there being no snow. Second stage of the GRP® de la Valserine. Starting from the Ferme de Retord, the route crosses the open and wooded landscapes of the plateau before beginning the descent towards Lalleyriat, with a viewpoint overlooking the Autoroute des Titans. In Saint-Germain-de-Joux, a detour is a must to discover the impressive Marmites de Géant, carved out by the Semine. The stage ends on the northern slope, in Giron.

Open from 1 April to 30 November – subject to there being no snow. First stage of the GRP® de la Valserine. Starting from Bellegarde station, the route runs past Mussel Castle and the hamlet of Ochiaz before climbing up to the Retord plateau. After a 1½-hour climb through the forest, a splendid panorama of the Jura and the Alps awaits you. The stage ends at La Charnay, with the option of staying overnight at the Ferme de Retord or continuing on to the Refuge de la Conay.