Trail des Glières - Fillière 2026

Trail des Glières - Fillière is a mountain trail weekend held in Thorens-Glières, part of the commune of Fillière in Haute-Savoie. Organized by the Club Nordic des Glières, it takes place in early October and offers adults five distance options: the Furious Bouquetin at 56 km with 3400 m of elevation gain, the Ecureuil Fou at 41 km with 2400 m, the Chamois Rapide at 21 km with 1400 m, the Marmotte Speed at 10 km with 500 m, and a Vertical Kilometer. The longest race begins before dawn, while the shortest adult race starts in the early afternoon, covering a range from ultra-style mountain running to a more accessible trail format. The Vertical Kilometer starts at the Usillon campsite and ascends to a finish above the Landron chalet, covering 1000 m of ascent in a single uphill effort. Approximately 1600 adults and 300 children participate in the event, with children’s races for ages 2 to 15 scheduled for Sunday morning. The adult race names reference Alpine wildlife, including the bouquetin, chamois, marmotte, and squirrel, suiting a race focused on steep local terrain rather than road speed. Sunday also features refreshment stands and activities throughout the day, with parking available at the Complexe Sportif Jean Coulon.