En basse vallée de l'Orvanne

Réserve de biosphère de Fontainebleau et du Gâtinais, France

9.8 miles (15.8 km) · 707 ft elevation gain · Loop · trail · Route

En basse vallée de l'Orvanne is a 9.8-mile loop route in Réserve de biosphère de Fontainebleau et du Gâtinais, France, gaining 707 feet of elevation. The route follows a rolling elevation profile. The terrain breaks into 5 distinct sections including 1 significant climb. The longest climb covers 1.4 miles gaining 284 feet at an average 3.3% grade. Approximately 89% of the route is runnable at a steady effort. The route opens with a gradual descent and finishes with mixed terrain.