A l'assaut de la Montagne Creuse

Réserve de biosphère de Fontainebleau et du Gâtinais, France

9.6 miles (15.5 km) · 537 ft elevation gain · Loop · trail · Route

A l'assaut de la Montagne Creuse is a 9.6-mile loop route in Réserve de biosphère de Fontainebleau et du Gâtinais, France, gaining 537 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 4 distinct sections including 1 significant climb. The longest climb covers 3.9 miles gaining 307 feet at an average 1.1% grade. Nearly the entire route is runnable at a steady effort. The route opens with a climb and finishes with flat terrain.