Défi Gravel du Haut-Bugey

The Défi Gravel du Haut-Bugey is a gravel cycling event held on Saturday 20 June 2026 in Oyonnax, in the Ain department of France. Organised by Club Cycl'hôpital du Haut-Bugey (FFVélo), it offers four loops with thirteen possible routes ranging from a 23 km initiation course up to 114 km with around 2,600 m of climbing, all on the forgotten roads and forest tracks of the Haut-Bugey plateau. Departures are between 8:00 and 9:00 with no on-course markings, so GPS navigation is mandatory.